1.
Mortar (weapon)
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A mortar is a device that fires projectiles at low velocities and short ranges. The mortar has traditionally used as a weapon to propel explosive mortar bombs in high-arcing ballistic trajectories. The weapon is typically muzzle-loading with a short, often smooth-bore barrel, Modern mortars are light and easily portable. They can be used for fire support with a variety of ammunition. Mortars have been used for hundreds of years, originally in siege warfare, many historians consider the first mortars to have been used at the 1453 siege of Constantinople by Mehmed the Conqueror. A European account of the 1456 siege of Belgrade by Giovanni da Tagliacozzo said that the Ottoman Turks used seven mortars that fired stone shots one Italian mile high. The time of flight of these was long enough that casualties could be avoided by posting observers to give warning of their trajectories. However, earlier mortars were used in Korea in a 1413 naval battle when Korean gunsmiths developed the Wangu, the earliest version of the Wangu dates back to 1407. Choe Hae-san, the son of Choe Mu-seon, is credited with inventing the first Wangu. Early mortars, such as the Pumhart von Steyr, were large and heavy. Simply made, these weapons were no more than iron bowls reminiscent of the kitchen, an early transportable mortar was invented by Baron Menno van Coehoorn. This mortar fired a shell, which had a fuse lit by the hot gases when fired. This innovation was taken up, necessitating a new form of naval ship. Mortars played a significant role in the Venetian conquest of Morea, an early use of these more mobile mortars as field weapons was by British forces in the suppression of the 1719 Jacobite rising at the Battle of Glen Shiel. High angle trajectory mortars held an advantage over standard field guns in the rough terrain of the West Highlands of Scotland. Coehorn-type mortars of approximately 180 pounds weight were used by both sides during the American Civil War and these answered as coehorns, and shells were successfully thrown from them into the trenches of the enemy. The mortar had fallen out of use by the Napoleonic era. The German Army studied the Siege of Port Arthur, where heavy artillery had been unable to destroy defensive structures like barbed wire, the solution they developed was a short-barrelled rifled muzzle-loading mortar called the Minenwerfer, and was built in three sizes
2.
United States Army
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The United States Armed Forces are the federal armed forces of the United States. They consist of the Army, Marine Corps, Navy, Air Force, from the time of its inception, the military played a decisive role in the history of the United States. A sense of unity and identity was forged as a result of victory in the First Barbary War. Even so, the Founders were suspicious of a permanent military force and it played an important role in the American Civil War, where leading generals on both sides were picked from members of the United States military. Not until the outbreak of World War II did a standing army become officially established. The National Security Act of 1947, adopted following World War II and during the Cold Wars onset, the U. S. military is one of the largest militaries in terms of number of personnel. It draws its personnel from a pool of paid volunteers. As of 2016, the United States spends about $580.3 billion annually to fund its military forces, put together, the United States constitutes roughly 40 percent of the worlds military expenditures. For the period 2010–14, the Stockholm International Peace Research Institute found that the United States was the worlds largest exporter of major arms, the United States was also the worlds eighth largest importer of major weapons for the same period. The history of the U. S. military dates to 1775 and these forces demobilized in 1784 after the Treaty of Paris ended the War for Independence. All three services trace their origins to the founding of the Continental Army, the Continental Navy, the United States President is the U. S. militarys commander-in-chief. Rising tensions at various times with Britain and France and the ensuing Quasi-War and War of 1812 quickened the development of the U. S. Navy, the reserve branches formed a military strategic reserve during the Cold War, to be called into service in case of war. Time magazines Mark Thompson has suggested that with the War on Terror, Command over the armed forces is established in the United States Constitution. The sole power of command is vested in the President by Article II as Commander-in-Chief, the Constitution also allows for the creation of executive Departments headed principal officers whose opinion the President can require. This allowance in the Constitution formed the basis for creation of the Department of Defense in 1947 by the National Security Act, the Defense Department is headed by the Secretary of Defense, who is a civilian and member of the Cabinet. The Defense Secretary is second in the chain of command, just below the President. Together, the President and the Secretary of Defense comprise the National Command Authority, to coordinate military strategy with political affairs, the President has a National Security Council headed by the National Security Advisor. The collective body has only power to the President
3.
United States Marine Corps
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The U. S. Marine Corps is one of the four armed service branches in the U. S. Department of Defense and one of the seven uniformed services of the United States. The current Chairman of the Joint Chiefs of Staff, the military officer in the U. S. Armed Forces, is a Marine Corps general, the Marine Corps has been a component of the U. S. Department of the Navy since 30 June 1834, working closely with naval forces for training, transportation, and logistics. The USMC operates posts on land and aboard sea-going amphibious warfare ships around the world, two battalions of Continental Marines were formed on 10 November 1775 in Philadelphia as a service branch of infantry troops capable of fighting for independence both at sea and on shore. The role of the Corps has since grown and evolved, expanding to aerial warfare and earning popular titles such as, Americas third air force, and, second land army. By the mid-20th century, the U. S. Marine Corps had become a major theorist of and its ability to rapidly respond on short notice to expeditionary crises gives it a strong role in the implementation and execution of American foreign policy. As of 2016, the USMC has around 182,000 active duty members and it is the smallest of the U. S. The USMC serves as an expeditionary force-in-readiness and this last clause, while seemingly redundant given the Presidents position as Commander-in-chief, is a codification of the expeditionary responsibilities of the Marine Corps. It derives from similar language in the Congressional acts For the Better Organization of the Marine Corps of 1834, in 1951, the House of Representatives Armed Services Committee called the clause one of the most important statutory – and traditional – functions of the Marine Corps. In addition to its duties, the Marine Corps conducts Visit, Board, Search, and Seizure operations, as well as missions in direct support of the White House. The Marine Band, dubbed the Presidents Own by Thomas Jefferson, Marines from Ceremonial Companies A & B, quartered in Marine Barracks, Washington, D. C. The Executive Flight Detachment also provides transport to Cabinet members. The relationship between the Department of State and the U. S. Marine Corps is nearly as old as the corps itself, for over 200 years, Marines have served at the request of various Secretaries of State. After World War II, an alert, disciplined force was needed to protect American embassies, consulates, in 1947, a proposal was made that the Department of War furnish Marine Corps personnel for Foreign Service guard duty under the provisions of the Foreign Service Act of 1946. A formal Memorandum of Agreement was signed between the Department of State and the Secretary of the Navy on December 15,1948, during the first year of the MSG program,36 detachments were deployed worldwide. Continental Marines manned raiding parties, both at sea and ashore, the Advanced Base Doctrine of the early 20th century codified their combat duties ashore, outlining the use of Marines in the seizure of bases and other duties on land to support naval campaigns. Throughout the late 19th and 20th centuries, Marine detachments served aboard Navy cruisers, battleships, Marine detachments served in their traditional duties as a ships landing force, manning the ships weapons and providing shipboard security. Marines would develop tactics and techniques of amphibious assault on defended coastlines in time for use in World War II, during World War II, Marines continued to serve on capital ships
4.
World War II
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World War II, also known as the Second World War, was a global war that lasted from 1939 to 1945, although related conflicts began earlier. It involved the vast majority of the worlds countries—including all of the great powers—eventually forming two opposing alliances, the Allies and the Axis. It was the most widespread war in history, and directly involved more than 100 million people from over 30 countries. Marked by mass deaths of civilians, including the Holocaust and the bombing of industrial and population centres. These made World War II the deadliest conflict in human history, from late 1939 to early 1941, in a series of campaigns and treaties, Germany conquered or controlled much of continental Europe, and formed the Axis alliance with Italy and Japan. Under the Molotov–Ribbentrop Pact of August 1939, Germany and the Soviet Union partitioned and annexed territories of their European neighbours, Poland, Finland, Romania and the Baltic states. In December 1941, Japan attacked the United States and European colonies in the Pacific Ocean, and quickly conquered much of the Western Pacific. The Axis advance halted in 1942 when Japan lost the critical Battle of Midway, near Hawaii, in 1944, the Western Allies invaded German-occupied France, while the Soviet Union regained all of its territorial losses and invaded Germany and its allies. During 1944 and 1945 the Japanese suffered major reverses in mainland Asia in South Central China and Burma, while the Allies crippled the Japanese Navy, thus ended the war in Asia, cementing the total victory of the Allies. World War II altered the political alignment and social structure of the world, the United Nations was established to foster international co-operation and prevent future conflicts. The victorious great powers—the United States, the Soviet Union, China, the United Kingdom, the Soviet Union and the United States emerged as rival superpowers, setting the stage for the Cold War, which lasted for the next 46 years. Meanwhile, the influence of European great powers waned, while the decolonisation of Asia, most countries whose industries had been damaged moved towards economic recovery. Political integration, especially in Europe, emerged as an effort to end pre-war enmities, the start of the war in Europe is generally held to be 1 September 1939, beginning with the German invasion of Poland, Britain and France declared war on Germany two days later. The dates for the beginning of war in the Pacific include the start of the Second Sino-Japanese War on 7 July 1937, or even the Japanese invasion of Manchuria on 19 September 1931. Others follow the British historian A. J. P. Taylor, who held that the Sino-Japanese War and war in Europe and its colonies occurred simultaneously and this article uses the conventional dating. Other starting dates sometimes used for World War II include the Italian invasion of Abyssinia on 3 October 1935. The British historian Antony Beevor views the beginning of World War II as the Battles of Khalkhin Gol fought between Japan and the forces of Mongolia and the Soviet Union from May to September 1939, the exact date of the wars end is also not universally agreed upon. It was generally accepted at the time that the war ended with the armistice of 14 August 1945, rather than the formal surrender of Japan
5.
Korean War
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The Korean War began when North Korea invaded South Korea. The United Nations, with the United States as the principal force, China came to the aid of North Korea, and the Soviet Union gave some assistance. Korea was ruled by Japan from 1910 until the days of World War II. In August 1945, the Soviet Union declared war on Japan, as a result of an agreement with the United States, U. S. forces subsequently moved into the south. By 1948, as a product of the Cold War between the Soviet Union and the United States, Korea was split into two regions, with separate governments, both governments claimed to be the legitimate government of all of Korea, and neither side accepted the border as permanent. The conflict escalated into open warfare when North Korean forces—supported by the Soviet Union, on that day, the United Nations Security Council recognized this North Korean act as invasion and called for an immediate ceasefire. On 27 June, the Security Council adopted S/RES/83, Complaint of aggression upon the Republic of Korea and decided the formation, twenty-one countries of the United Nations eventually contributed to the UN force, with the United States providing 88% of the UNs military personnel. After the first two months of war, South Korean forces were on the point of defeat, forced back to the Pusan Perimeter, in September 1950, an amphibious UN counter-offensive was launched at Inchon, and cut off many North Korean troops. Those who escaped envelopment and capture were rapidly forced back north all the way to the border with China at the Yalu River, at this point, in October 1950, Chinese forces crossed the Yalu and entered the war. Chinese intervention triggered a retreat of UN forces which continued until mid-1951, after these reversals of fortune, which saw Seoul change hands four times, the last two years of fighting became a war of attrition, with the front line close to the 38th parallel. The war in the air, however, was never a stalemate, North Korea was subject to a massive bombing campaign. Jet fighters confronted each other in combat for the first time in history. The fighting ended on 27 July 1953, when an armistice was signed, the agreement created the Korean Demilitarized Zone to separate North and South Korea, and allowed the return of prisoners. However, no treaty has been signed, and the two Koreas are technically still at war. Periodic clashes, many of which are deadly, continue to the present, in the U. S. the war was initially described by President Harry S. Truman as a police action as it was an undeclared military action, conducted under the auspices of the United Nations. In South Korea, the war is referred to as 625 or the 6–2–5 Upheaval. In North Korea, the war is referred to as the Fatherland Liberation War or alternatively the Chosǒn War. In China, the war is called the War to Resist U. S
6.
Chemical Corps
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The Chemical Corps is the branch of the United States Army tasked with defending against chemical, biological, radiological, and nuclear weapons. The corps was founded as the U. S, Chemical Warfare Service during World War I. Its name was changed to the Chemical Corps in 1946, for most of its history, the Chemical Corps was tasked with delivering chemical weapons rather than defending against them. Discussion of the dates back to the American Civil War. A letter to the War Department dated 5 April 1862 from New York City resident John Doughty proposed the use of shells to drive the Confederate Army from its positions. Doughty included a drawing of the shell with his letter. It is unknown how the military reacted to Doughtys proposal but the letter was unnoticed in a pile of old official documents until modern times, another American, Forrest Shepherd, also proposed a chemical weapon attack against the Confederates. Shepherds proposal involved hydrogen chloride, an attack that would have likely been non-lethal, Shepherd was a well-known geologist at the time and his proposal was in the form of a letter directly to the White House. The earliest predecessors to the United States Army Chemical Corps owe their existence to changes of military technology early in World War I. Despite this early interest, troops were supplied with masks nor trained for offensive gas warfare until the U. S. became involved in World War I in 1917. By 1917, the use of weapons by both the Allied and Central Powers had become commonplace along the Western, Eastern and Italian Fronts. In 1917, Secretary of the Interior Franklin K. Lane, directed the Bureau of Mines to assist the Army and Navy in creating a gas war program. After the Director of the Bureau of Mines formally offered the service to the Military Committee of the National Research Council. On 5 July 1917 General John J. Pershing oversaw the creation of a Gas Service Section, the predecessor to the 1st Gas Regiment was the 30th Engineer Regiment. The 30th was activated on 15 August 1917 at Camp American University, Washington, additional War Department orders established a Chemical Service Section that included 47 commissioned officers and 95 enlisted personnel. Despite the conventional training, the public perceived the 30th as dealing mainly with poisonous gas, by the time those in the 30th Engineers arrived in France most of them knew nothing of chemical warfare and had no specialized equipment. The 30th Engineer Regiment was redesignated the First Gas Regiment in 1918 and deployed to assist and support Army gas operations, the Chemical Warfare Service, the predecessor to the Chemical Corps, was officially formed on 28 June 1918 and encompassed the Gas Service and Chemical Service Sections. By 1 November 1918 the CWS included 1,654 commissioned officers and 18,027 enlisted personnel, major General William L. Sibert was appointed as the first director of the CWS on the day it was created
7.
Gun barrel
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A gun barrel is a part of firearms and artillery pieces. The hollow interior of the barrel is called the bore, a gun barrel must be able to hold in the expanding gas produced by the propellants to ensure that optimum muzzle velocity is attained by the projectile as it is being pushed out by the expanding gas. Modern small arms barrels are made of known and tested to withstand the pressures involved. Artillery pieces are made by various techniques providing reliably sufficient strength, early firearms were muzzle-loading, with powder, and then shot loaded from the muzzle, capable of only a low rate of fire. During the 19th century effective mechanical locks were invented that sealed a breech-loading weapon against the escape of propellant gases, the early Chinese, the inventors of gunpowder, used bamboo, a naturally tubular stalk, as the first barrels in gunpowder projectile weapons. Early European guns were made of iron, usually with several strengthening bands of the metal wrapped around circular wrought iron rings. The Chinese were the first to master cast-iron cannon barrels, early cannon barrels were very thick for their caliber. Bore evacuator Bore snake Cannon Muzzle Polygonal rifling Rifling Slug barrel Smoothbore
8.
Shell (projectile)
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A shell is a payload-carrying projectile that, as opposed to shot, contains an explosive or other filling, though modern usage sometimes includes large solid projectiles properly termed shot. Solid shot may contain a pyrotechnic compound if a tracer or spotting charge is used, originally, it was called a bombshell, but shell has come to be unambiguous in a military context. Words cognate with grenade are still used for an artillery or mortar projectile in some European languages, shells are usually large-calibre projectiles fired by artillery, combat vehicles, and warships. Shells usually have the shape of a cylinder topped by a nose for good aerodynamic performance, possibly with a tapering base. Solid cannonballs did not need a fuse, but hollow munitions filled with something such as gunpowder to fragment the ball, needed a fuse, percussion fuses with a spherical projectile presented a challenge because there was no way of ensuring that the impact mechanism hit the target. Therefore, shells needed a fuse that was ignited before or during firing. The earliest record of shells being used in combat was by the Republic of Venice at Jadra in 1376, shells with fuses were used at the 1421 siege of St Boniface in Corsica. These were two hollowed hemispheres of stone or bronze held together by an iron hoop, as described in their book, these hollow, gunpowder-packed shells were made of cast iron. At least since the 16th Century grenades made of ceramics or glass were in use in Central Europe, a hoard of several hundred ceramic greandes were discovered during building works in front of a bastion of the Bavarian City of Ingolstadt, Germany dated to the 17th Century. Lots of the grenades obtained their orignal blackpowder loads and igniters, most probably the grenades were intentionally dumped the moat of the bastion before the year 1723. Early powder burning fuses had to be loaded fuse down to be ignited by firing or a portfire put down the barrel to light the fuse, other shells were wrapped in bitumen cloth, which would ignite during the firing and in turn ignite a powder fuse. Nevertheless, shells came into use in the 16th Century. By the 18th Century, it was known that the fuse towards the muzzle could be lit by the flash through the windage between the shell and the barrel, the use of exploding shells from field artillery became relatively commonplace from early in the 19th century. Until the mid 19th century, shells remained as simple exploding spheres that used gunpowder and they were usually made of cast iron, but bronze, lead, brass and even glass shell casings were experimented with. The word bomb encompassed them at the time, as heard in the lyrics of The Star-Spangled Banner, typically, the thickness of the metal body was about a sixth of their diameter and they were about two thirds the weight of solid shot of the same calibre. To ensure that shells were loaded with their fuses towards the muzzle, in 1819, a committee of British artillery officers recognised that they were essential stores and in 1830 Britain standardised sabot thickness as a half inch. The sabot was also intended to reduce jamming during loading, despite the use of exploding shell, the use of smoothbore cannons, firing spherical projectiles of shot, remained the dominant artillery method until the 1850s. By the late 18th century, artillery could use canister shot to defend itself from infantry or cavalry attack and this involved loading a tin or canvas container filled with small iron or lead balls instead of the usual cannonball
9.
Caliber
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In guns, particularly firearms, caliber or calibre is the approximate internal diameter of the barrel, or the diameter of the projectile it fires, in hundredths or sometimes thousandths of an inch. For example, a 45 caliber firearm has a diameter of.45 of an inch. Barrel diameters can also be expressed using metric dimensions, as in 9mm pistol, when the barrel diameter is given in inches, the abbreviation cal can be used. Good performance requires a bullet to closely match the diameter of a barrel to ensure a good seal. While modern cartridges and cartridge firearms are referred to by the cartridge name. Firearm calibers outside the range of 17 to 50 exist, but are rarely encountered. Larger calibers, such as.577.585.600.700, the.950 JDJ is the only known cartridge beyond 79 caliber used in a rifle. Referring to artillery, caliber is used to describe the length as multiples of the bore diameter. A 5-inch 50 calibre gun has a diameter of 5 in. The main guns of the USS Missouri are 1650 caliber, makers of early cartridge arms had to invent methods of naming the cartridges, since no established convention existed then. One of the early established cartridge arms was the Spencer repeating rifle, later various derivatives were created using the same basic cartridge, but with smaller-diameter bullets, these were named by the cartridge diameter at the base and mouth. The original No.56 became the. 56-56, and the smaller versions. 56-52. 56-50, the. 56-52, the most common of the new calibers, used a 50-cal bullet. Optionally, the weight in grains was designated, e. g. 45-70-405. Variations on these methods persist today, with new cartridges such as the.204 Ruger, metric diameters for small arms refer to cartridge dimensions and are expressed with an × between the bore diameter and the length of the cartridge case, for example,7. 62×51 NATO. This indicates that the diameter is 7. 62mm, loaded in a case 51mm long. Similarly, the 6. 5×55 Swedish cartridge has a diameter of 6.5 mm. An exception to rule is the proprietary cartridge used by U. S. maker Lazzeroni. The following table lists commonly used calibers where both metric and imperial are used as equivalents
10.
Utah Beach
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Utah Beach was the code name for one of the five sectors of the Allied invasion of German-occupied France in the Normandy landings on June 6,1944, during World War II. The westernmost of the five landing beaches, Utah is on the Cotentin Peninsula, west of the mouths of the Douve, the objective at Utah was to secure a beachhead on the Cotentin Peninsula, the location of important port facilities at Cherbourg. The amphibious assault, primarily by the US 4th Infantry Division and 70th Tank Battalion, was supported by landings of the 82nd. The intention was to seal off the Cotentin Peninsula, prevent the Germans from reinforcing Cherbourg. Utah, along with Sword Beach on the flank, was added to the invasion plan in December 1943. These changes doubled the frontage of the invasion and necessitated a delay so that additional landing craft. Allied forces attacking Utah Beach faced two battalions of the 919th Grenadier Regiment, part of the 709th Static Infantry Division, while some airborne objectives were quickly met, many paratroopers landed far from their drop zones and were unable to fulfill their objectives on the first day. On the beach itself, infantry and tanks landed in four waves beginning at 06,30, meanwhile, engineers set to work clearing the area of obstacles and mines, and additional waves of reinforcements continued to arrive. At the close of D-Day, Allied forces had captured about half of the planned area and contingents of German defenders remained. The 4th Infantry Division landed 21,000 troops on Utah at the cost of only 197 casualties, Airborne troops arriving by parachute and glider numbered an additional 14,000 men, with 2,500 casualties. Around 700 men were lost in engineering units, 70th Tank Battalion, Cherbourg was captured on June 26, but by this time the Germans had destroyed the port facilities, which were not brought back into full operation until September. The decision to undertake an invasion of continental Europe within the next year was taken at the Trident Conference. The Allies initially planned to launch the invasion on May 1,1944, General Dwight D. Eisenhower was appointed commander of Supreme Headquarters Allied Expeditionary Force. General Bernard Montgomery was named as commander of the 21st Army Group, on December 31,1943, Eisenhower and Montgomery first saw the plan, which proposed amphibious landings by three divisions and two-thirds of an airborne division. The two generals immediately insisted that the scale of the invasion be expanded to five divisions. The change doubled the frontage of the invasion from 25 miles to 50 miles and this would allow for quicker offloading of men and materiel, make it more difficult for the Germans to respond, and speed up the capture of the port at Cherbourg. Eisenhower and Lieutenant General Omar Bradley selected for Utah the VII Corps, Major General J. Lawton Collins, who had experience with amphibious operations in the Pacific Theater of Operations, replaced Major General Roscoe Woodruff as commander of VII Corps. Utah Beach, the westernmost of the five landing beaches, is on the Cotentin Peninsula, west of the mouths of the Douve and Vire rivers
11.
North Korea
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North Korea, officially the Democratic Peoples Republic of Korea, is a country in East Asia, constituting the northern part of the Korean Peninsula. Pyongyang is both the capital as well as its largest city. To the north and northwest the country is bordered by China and by Russia along the Amnok, the country is bordered to the south by South Korea, with the heavily fortified Korean Demilitarized Zone separating the two. Negotiations on reunification failed, and in 1948 two separate governments were formed, the communist Democratic Peoples Republic of Korea in the north, an invasion initiated by North Korea led to the Korean War. The Korean Armistice Agreement brought about a ceasefire, and no peace treaty was ever signed. North Korea officially describes itself as a self-reliant socialist state and formally holds elections, critics regard it as a totalitarian dictatorship. Various outlets have called it Stalinist, particularly noting the elaborate cult of personality around Kim Il-sung, International organizations have assessed human rights violations in North Korea as belonging to a category of their own, with no parallel in the contemporary world. Over time, North Korea has gradually distanced itself from the world communist movement, Juche, an ideology of national self-reliance, was introduced into the constitution as a creative application of Marxism–Leninism in 1972. The means of production are owned by the state through state-run enterprises, most services such as healthcare, education, housing and food production are subsidized or state-funded. From 1994 to 1998, North Korea suffered from a famine that resulted in the deaths of between 0.24 and 3.5 million people, and the continues to struggle with food production. North Korea follows Songun, or military-first policy and it is the country with the highest number of military and paramilitary personnel, with a total of 9,495,000 active, reserve, and paramilitary personnel. Its active duty army of 1.21 million is the fourth largest in the world, after China, North Korea is an atheist state with no official religion and where public religion is discouraged. The name Korea derives from the name Goryeo, the name Goryeo itself was first used by the ancient kingdom of Goguryeo in the 5th century as a shortened form of its name. The 10th-century kingdom of Goryeo succeeded Goguryeo, and thus inherited its name, the modern spelling of Korea first appeared in the late 17th century in the travel writings of the Dutch East India Companys Hendrick Hamel. After the division of the country into North and South Korea, the two sides used different terms to refer to Korea, Chosun or Joseon in North Korea, in 1948, North Korea adopted Democratic Peoples Republic of Korea as its new legal name. After the First Sino-Japanese War and the Russo-Japanese War, Korea was occupied by Japan, Japan tried to suppress Korean traditions and culture and ran the economy primarily for its own benefit. Korean resistance groups known as Dongnipgun operated along the Sino-Korean border, some of them took part in allied action in China and parts of South East Asia. One of the leaders was the communist Kim Il-sung, who later became the leader of North Korea
12.
Rifling
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In firearms, rifling consists of helical grooves in the internal surface of a guns barrel, which impart a spin to a projectile around its long axis. This spin serves to stabilize the projectile, improving its aerodynamic stability. Rifling is often described by its twist rate, which indicates the distance the rifling takes to complete one revolution, such as 1 turn in 10 inches. A shorter distance indicates a faster twist, meaning that for a given velocity the projectile will be rotating at a spin rate. Barrels intended for long, small-diameter bullets, such as the ultra-low-drag, 80-grain 0.223 inch bullets, extremely long projectiles such as flechettes may require high twist rates, these projectiles must be inherently stable, and are often fired from a smoothbore barrel. Muskets were smoothbore, large caliber weapons using ball-shaped ammunition fired at low velocity. Due to the high cost and great difficulty of manufacturing, and the need to load readily from the muzzle. Consequently, on firing the ball bounced off the sides of the barrel when fired, barrel rifling was invented in Augsburg, Germany in 1498. In 1520 August Kotter, an armourer of Nuremberg, Germany improved upon this work, though true rifling dates from the mid-16th century, it did not become commonplace until the nineteenth century. The most successful weapons using rifling with black powder were breech loaders such as the Queen Anne pistol, the grooves most commonly used in modern rifling have fairly sharp edges. More recently, polygonal rifling, a throwback to the earliest types of rifling, has become popular, polygonal barrels tend to have longer service lives because the reduction of the sharp edges of the land reduces erosion of the barrel. Supporters of polygonal rifling also claim higher velocities and greater accuracy, polygonal rifling is currently seen on pistols from CZ, Heckler & Koch, Glock, Tanfoglio, and Kahr Arms, as well as the Desert Eagle. Such guns have achieved significant increases in velocity and range. Examples include the South African G5 and the German PzH2000, gain-twist rifling begins with very little change in the projectiles angular momentum during the first few inches of bullet travel after ignition during the transition from chamber to throat. This enables the bullet to remain undisturbed and trued to the case mouth. After engaging the rifling the bullet is progressively subjected to accelerated angular momentum as burning powder propels it down the barrel. By only gradually increasing the rate, torque is spread along a much longer section of barrel. Gain-twist rifling was used as early as the American Civil War, colt Army and Navy revolvers both employed gain-twist rifling
13.
M30 mortar
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The M30106.7 mm heavy mortar is an American rifled, muzzle-loading, high-angle-of-fire weapon used for long-range indirect fire support to infantry units. The M30 system weighs 305 kg including the mortar with a welded steel rotator, M24A1 base plate. A point of interest in the design of mortar is the rifled barrel. A rifled barrel requires the round to be a tight fit to the bore in order for the rifling to engage the round. But in a mortar, the round has to be loose enough in the bore to drop in from the front. In order to have it both ways, these rounds have a ring at the base which expands into the rifling under the pressure of the explosion of the firing charge which propels the round. American rounds are designed to be drop-safe and bore-safe, HE M329A1—max range 5,650 m, weight 12. Deployment height above ground is determined by gun elevation angle and propelling charge, there was also a sub-caliber training device that utilized blank 20 gauge shotgun shells to propel an inert training round a few hundred meters. This training was for gunnery skills of laying the guns, the M30 entered service with the U. S. Army in 1951, replacing the previous M2106.7 mm mortar. It was adopted due to the range and lethality in comparison to the previous M24.2 inch mortar, although the M30. Due to this weight the mortar was most often mounted in a tracked mortar carrier of the M113 family. This vehicle mounted mortar was crewed by 5 people, the commander, gunner, assistant gunner, ammunition bearer. Also this decreased the accuracy of the weapon as the recoil from firing caused the plate to shift in the ground. Chapter 6, FM 23-90,4. 2-Inch Mortar, M30 List of artillery List of crew served weapons of the US Armed Forces Chemical mortar battalions of the United States Army
14.
Smoke shell
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A shell is a payload-carrying projectile that, as opposed to shot, contains an explosive or other filling, though modern usage sometimes includes large solid projectiles properly termed shot. Solid shot may contain a pyrotechnic compound if a tracer or spotting charge is used, originally, it was called a bombshell, but shell has come to be unambiguous in a military context. Words cognate with grenade are still used for an artillery or mortar projectile in some European languages, shells are usually large-calibre projectiles fired by artillery, combat vehicles, and warships. Shells usually have the shape of a cylinder topped by a nose for good aerodynamic performance, possibly with a tapering base. Solid cannonballs did not need a fuse, but hollow munitions filled with something such as gunpowder to fragment the ball, needed a fuse, percussion fuses with a spherical projectile presented a challenge because there was no way of ensuring that the impact mechanism hit the target. Therefore, shells needed a fuse that was ignited before or during firing. The earliest record of shells being used in combat was by the Republic of Venice at Jadra in 1376, shells with fuses were used at the 1421 siege of St Boniface in Corsica. These were two hollowed hemispheres of stone or bronze held together by an iron hoop, as described in their book, these hollow, gunpowder-packed shells were made of cast iron. At least since the 16th Century grenades made of ceramics or glass were in use in Central Europe, a hoard of several hundred ceramic greandes were discovered during building works in front of a bastion of the Bavarian City of Ingolstadt, Germany dated to the 17th Century. Lots of the grenades obtained their orignal blackpowder loads and igniters, most probably the grenades were intentionally dumped the moat of the bastion before the year 1723. Early powder burning fuses had to be loaded fuse down to be ignited by firing or a portfire put down the barrel to light the fuse, other shells were wrapped in bitumen cloth, which would ignite during the firing and in turn ignite a powder fuse. Nevertheless, shells came into use in the 16th Century. By the 18th Century, it was known that the fuse towards the muzzle could be lit by the flash through the windage between the shell and the barrel, the use of exploding shells from field artillery became relatively commonplace from early in the 19th century. Until the mid 19th century, shells remained as simple exploding spheres that used gunpowder and they were usually made of cast iron, but bronze, lead, brass and even glass shell casings were experimented with. The word bomb encompassed them at the time, as heard in the lyrics of The Star-Spangled Banner, typically, the thickness of the metal body was about a sixth of their diameter and they were about two thirds the weight of solid shot of the same calibre. To ensure that shells were loaded with their fuses towards the muzzle, in 1819, a committee of British artillery officers recognised that they were essential stores and in 1830 Britain standardised sabot thickness as a half inch. The sabot was also intended to reduce jamming during loading, despite the use of exploding shell, the use of smoothbore cannons, firing spherical projectiles of shot, remained the dominant artillery method until the 1850s. By the late 18th century, artillery could use canister shot to defend itself from infantry or cavalry attack and this involved loading a tin or canvas container filled with small iron or lead balls instead of the usual cannonball
15.
Allied invasion of Sicily
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The Allied invasion of Sicily, codenamed Operation Husky, was a major campaign of World War II, in which the Allies took the island of Sicily from the Axis powers. It was an amphibious and airborne operation, followed by a six-week land campaign and was the beginning of the Italian Campaign. Husky began on the night of 9/10 July 1943, and ended on 17 August, the Italian leader, Benito Mussolini, was toppled from power in Italy and the way was opened for the Allied invasion of Italy. The German leader, Adolf Hitler, canceled a major offensive at Kursk after only a week, in part to divert forces to Italy, resulting in a reduction of German strength on the Eastern Front. The plan for Operation Husky called for the assault of Sicily by two Allied armies, one landing on the south-eastern and one on the central southern coast. The amphibious assaults were to be supported by gunfire, as well as tactical bombing, interdiction. As such, the operation required a complex structure, incorporating land, naval. The overall commander was American General Dwight D. Eisenhower, as Commander-in-Chief of all the Allied forces in North Africa, British General Sir Harold Alexander acted as his second-in-command and as the 15th Army Group commander. The American Major General Walter Bedell Smith was appointed as Eisenhowers Chief of Staff, the overall Naval Force Commander was the British Admiral Sir Andrew Cunningham. The Allied land forces were from the American, British and Canadian armies, the Eastern Task Force was led by General Sir Bernard Montgomery and consisted of the British Eighth Army. The Western Task Force was commanded by Lieutenant General George S. Patton, the two task force commanders reported to Alexander as commander of the 15th Army Group. Seventh Army consisted initially of three divisions, organized under II Corps, commanded by Lieutenant General Omar Bradley. Middleton, sailed from the United States via Oran in Algeria, the 2nd Armored Division, under Major General Hugh Joseph Gaffey, also sailing from Oran, was to be a floating reserve and be fed into combat as required. On 15 July, Patton reorganized his command into two corps by creating a new Provisional Corps headquarters, commanded by his deputy army commander, Major General Geoffrey Keyes. The two divisions of XIII Corps, the 5th and 50th Infantry Divisions, commanded by Major-Generals Horatio Berney-Ficklin and Sidney Kirkman and this request was granted by the British, displacing the veteran British 3rd Infantry Division. The Red Patch Division was added to Leeses XXX Corps to become part of the British Eighth Army, in addition to the amphibious landings, airborne troops were to be flown in to support both the Western and Eastern Task Forces. To the east, the British 1st Airborne Division, commanded by Major-General George F. Hopkinson, was to seize vital bridges and high ground in support of the British Eighth Army. The initial plan dictated that the U. S. 82nd Airborne Division, Allied naval forces were also grouped into two task forces to transport and support the invading armies
16.
M3 Half-track
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The M3 Half-track, known officially as the Carrier, Personnel Half-track M3, was an American armored personnel carrier half-track widely used by the Allies during World War II and in the Cold War. Derived from the M2 Half Track Car, the slightly longer M3 was extensively produced, with about 15,000 units, the design was based on the Citroen-Kégresse half-track. The developers attempted to use as many parts as possible. There were also several variants for different purposes. The M3 and its variants were supplied to the U. S. Army and Marines, as well as British Commonwealth and Soviet Red Army forces, although at first unpopular, it was used by most of the Allies at some point in the war. Racks under the seats were used for ammunition and rations, additional racks behind the seat backs held the squads rifles, a small rack for mines was added on the outside of the hull just above the tracks. In combat, most units found it necessary to stow additional food, rucksacks, luggage racks were often added in the field, and very late vehicles had rear-mounted racks for this crew stowage. Early vehicles had a mount, just behind the front seats. The later M3A1 adopted a raised, armored pulpit mount for the. 50-caliber, many M3s were later modified to the M3A1 standard. The body was armored all around, with an armored shutter for the engines radiator. Between the world wars, the U. S. Army sought to improve the mobility of its forces. With the goal of finding a high-mobility infantry vehicle, the Ordnance Department had evaluated the design by testing French Citroën-Kégresse vehicles. The White Motor Company produced a prototype using their own chassis. The front suspension was leaf spring, tracks by vertical volute spring, braking was vacuum-assisted hydraulic, steering manual, without power assist. The M3 was the larger and longer counterpart to the M2 Half Track Car, the M2 was originally intended to function as an artillery tractor. The M3 had an access door in the rear and seating for a 12-man rifle squad. Five seats were arranged on each side in the rear of the vehicle, although originally intended for armored infantry regiments, it was quickly put into action with the Provisional Tank Group when the Japanese Army began their invasion of the Philippines. Initially, there were multiple complaints due to mechanical difficulties
17.
Peleliu
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Peleliu is an island in the island nation of Palau. Peleliu forms, along two small islands to its northeast, one of the sixteen states of Palau. The island is noted as the location of the Battle of Peleliu in World War II, Peleliu is approximately 10 kilometres northeast of the island of Angaur and 40 kilometres southwest of the island of Koror. Peleliu has an area of 13 square kilometres. As of 2000, its population was about 571, making it the third most populous state of Palau, most of the islands population lives in the village of Kloulklubed which is the state capital on the northwestern coast. They were then charted as Los Arrecifes, two years later they were explored in detail by the expedition of Spanish naval officer Bernardo de Egoy. Following its defeat in the Spanish–American War, Spain sold Palau to Germany in 1899, control passed to Japan in 1914. During World War II, the Battle of Peleliu was a battle between units of the United States Marine Corps and United States Army against the Imperial Japanese Army. The ruins of many of the installations of the era, such as the airstrip, are still intact. There are war memorials on the island to both the American and the Japanese dead, Peleliu and Angaur were the only islands in the Palau archipelago to be occupied by the Americans during the war. The capital of Koror remained in Japanese hands to the end of the war, Peleliu passed formally to the United States under United Nations auspices in 1947 as part of the Trust Territory of the Pacific Islands. Palau became independent in 1978, and Peleliu was organized as a state within the new republic, in August 2014, Peleliu hosted the leaders retreat at the 45th Pacific Islands Forum, featuring representatives from the forums 15 member states. A regular boat service connects the island twice a week to Koror, travel time by boat from Koror is over an hour. The small harbor in the far north of the island is shallow, the entire island has been listed on the National Register of Historic Places as the Peleliu Battlefield, and has been designated a U. S. National Historic Landmark. Map of Peleliu Peleliu National Historical Park Study Preliminary Draft Bloody Peleliu Photos of WW2-era relics and equipment on Peleliu Honorary Consulate of the Republic of Palau to the UK &NI
18.
United States Navy
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The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U. S. Navy is the largest, most capable navy in the world, the U. S. Navy has the worlds largest aircraft carrier fleet, with ten in service, two in the reserve fleet, and three new carriers under construction. The service has 323,792 personnel on duty and 108,515 in the Navy Reserve. It has 274 deployable combat vessels and more than 3,700 operational aircraft as of October 2016, the U. S. Navy traces its origins to the Continental Navy, which was established during the American Revolutionary War and was effectively disbanded as a separate entity shortly thereafter. It played a role in the American Civil War by blockading the Confederacy. It played the role in the World War II defeat of Imperial Japan. The 21st century U. S. Navy maintains a global presence, deploying in strength in such areas as the Western Pacific, the Mediterranean. The Navy is administratively managed by the Department of the Navy, the Department of the Navy is itself a division of the Department of Defense, which is headed by the Secretary of Defense. The Chief of Naval Operations is an admiral and the senior naval officer of the Department of the Navy. The CNO may not be the highest ranking officer in the armed forces if the Chairman or the Vice Chairman of the Joint Chiefs of Staff. The mission of the Navy is to maintain, train and equip combat-ready Naval forces capable of winning wars, deterring aggression, the United States Navy is a seaborne branch of the military of the United States. The Navys three primary areas of responsibility, The preparation of naval forces necessary for the prosecution of war. The development of aircraft, weapons, tactics, technique, organization, U. S. Navy training manuals state that the mission of the U. S. Armed Forces is to prepare and conduct prompt and sustained combat operations in support of the national interest, as part of that establishment, the U. S. Navys functions comprise sea control, power projection and nuclear deterrence, in addition to sealift duties. It follows then as certain as that night succeeds the day, that without a decisive naval force we can do nothing definitive, the Navy was rooted in the colonial seafaring tradition, which produced a large community of sailors, captains, and shipbuilders. In the early stages of the American Revolutionary War, Massachusetts had its own Massachusetts Naval Militia, the establishment of a national navy was an issue of debate among the members of the Second Continental Congress. Supporters argued that a navy would protect shipping, defend the coast, detractors countered that challenging the British Royal Navy, then the worlds preeminent naval power, was a foolish undertaking. Commander in Chief George Washington resolved the debate when he commissioned the ocean-going schooner USS Hannah to interdict British merchant ships, and reported the captures to the Congress
19.
Landing Craft Infantry
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The Landing Craft Infantry were several classes of seagoing amphibious assault ships of the Second World War used to land large numbers of infantry directly onto beaches. They were developed in response to a British request for a capable of carrying and landing substantially more troops than their smaller Landing Craft Assault. The result was a steel ship that could land 200 troops. Some 923 were built starting in 1943, serving in both the Pacific and European theaters, including a number that were converted into heavily armed beach assault support ships. Commonly called Elsie Items, the LCI supplemented the small LCAs/LCVPs as a way to get many troops ashore before a dock could be captured or built, as such, they were the largest dedicated beachable infantry landing craft in the allied inventory. The LCI was designed to carry 200 troops at up to 15 knots, since a steel hull would be needed and steel was already earmarked for building destroyers at home the U. S was approached. There the plans were developed into the LCI - Landing Craft Infantry, the original British design was envisioned as being a one time use vessel which would simply ferry the troops across the English Channel, and were considered an expendable vessel. As such, no sleeping accommodations were placed in the original design. The troops were provided benches upon which to sit while they were transported across the channel and this was changed shortly after initial use of these ships, when it was discovered that many missions would require overnight accommodations. The US was able to come up with an easily built and mass-produced design by using non-traditional shipbuilding facilities, the US established LCI building yards at ten different locations. There were 3 major types of LCI which differed mostly by the location of the ramps, all of these ships had similar hulls. The hull of all LCI were 158 ft long with a 23-foot beam, making them relatively long, the LCI350 class had a single enclosed bow ramp with 2 bow doors that swung open. The reason for moving the ramp to the inside was to some protection for the troops as they disembarked to the beach. Also, the low, squared-off conning tower was upgraded on later models with a taller, round conning tower which afforded slightly more visibility from the bridge. However, they were included in the first waves at numerous invasions such as Anzio, Normandy, Southern France, Elba, Saipan, the Philippines, Iwo Jima, Guam, and Okinawa. All LCI were twin shaft propelled by two banks of Detroit Diesel 6-71 Quad Diesel engines that produced a total of 1600 BHP and these engines were a wartime expedient design that utilized existing and readily available engines. Four 2-stroke Detroit Diesel 6-71 with Roots blower were coupled to create a bank for each of the two propeller shafts, the 4 engines per bank were joined together using individual drive clutches hence the name Quad Diesel. If a single engine were to fail, the engine could be disconnected from the unit via its clutch
20.
Philippines
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The Philippines, officially the Republic of the Philippines, is a sovereign island country in Southeast Asia situated in the western Pacific Ocean. It consists of about 7,641 islands that are categorized broadly under three main geographical divisions from north to south, Luzon, Visayas, and Mindanao, the capital city of the Philippines is Manila and the most populous city is Quezon City, both part of Metro Manila. The Philippines has an area of 300,000 square kilometers, and it is the eighth-most populated country in Asia and the 12th most populated country in the world. As of 2013, approximately 10 million additional Filipinos lived overseas, multiple ethnicities and cultures are found throughout the islands. In prehistoric times, Negritos were some of the archipelagos earliest inhabitants and they were followed by successive waves of Austronesian peoples. Exchanges with Chinese, Malay, Indian, and Islamic nations occurred, then, various competing maritime states were established under the rule of Datus, Rajahs, Sultans or Lakans. The arrival of Ferdinand Magellan in Homonhon, Eastern Samar in 1521 marked the beginning of Hispanic colonization, in 1543, Spanish explorer Ruy López de Villalobos named the archipelago Las Islas Filipinas in honor of Philip II of Spain. With the arrival of Miguel López de Legazpi from Mexico City, in 1565, the Philippines became part of the Spanish Empire for more than 300 years. This resulted in Roman Catholicism becoming the dominant religion, during this time, Manila became the western hub of the trans-Pacific trade connecting Asia with Acapulco in the Americas using Manila galleons. Aside from the period of Japanese occupation, the United States retained sovereignty over the islands until after World War II, since then, the Philippines has often had a tumultuous experience with democracy, which included the overthrow of a dictatorship by a non-violent revolution. It is a member of the United Nations, World Trade Organization, Association of Southeast Asian Nations, the Asia-Pacific Economic Cooperation forum. It also hosts the headquarters of the Asian Development Bank, the Philippines was named in honor of King Philip II of Spain. Spanish explorer Ruy López de Villalobos, during his expedition in 1542, named the islands of Leyte, eventually the name Las Islas Filipinas would be used to cover all the islands of the archipelago. Before that became commonplace, other such as Islas del Poniente. The official name of the Philippines has changed several times in the course of its history, during the Philippine Revolution, the Malolos Congress proclaimed the establishment of the República Filipina or the Philippine Republic. From the 1898 Treaty of Paris, the name Philippines began to appear, since the end of World War II, the official name of the country has been the Republic of the Philippines. The metatarsal of the Callao Man, reliably dated by uranium-series dating to 67,000 years ago is the oldest human remnant found in the archipelago to date and this distinction previously belonged to the Tabon Man of Palawan, carbon-dated to around 26,500 years ago. Negritos were also among the archipelagos earliest inhabitants, but their first settlement in the Philippines has not been reliably dated, there are several opposing theories regarding the origins of ancient Filipinos
21.
Iwo Jima
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The U. S. occupied Iwo Jima until 1968 when it was returned to Japan. The first European to arrive at Iwo Jima was Spanish sailor Bernardo de la Torre who named it Sufre Island, at that time Iwo Jima and other islands were the limit between the Spanish and Portuguese Empires in the far East. In 1779, the island was charted as Sulphur Island, the translation of its official name. The name Sulphur Island was translated into Late Middle Japanese with the Sino-Japanese rendering iwau-tau, from Middle Chinese ljuw-huang sulfur, the historical spelling iwautau had come to be pronounced Iwō-tō by the age of Western exploration, and the 1946 orthography reform fixed the spelling and pronunciation at Iō-tō. An alternative, Iwō-jima, modern Iō-jima, also appeared in nautical atlases, tō and shima are different readings of the kanji for island, the shima being changed to jima in this case. Japanese naval officers who arrived to fortify the island before the U. S. invasion mistakenly called it Iwo Jima, in this way, the Iwo Jima reading became mainstream and was the one used by U. S. forces who arrived during World War II. Moves to revert the pronunciation were sparked by the high-profile films Flags of Our Fathers and Letters from Iwo Jima, the change does not affect how the name is written with kanji, 硫黄島, only how it is pronounced or written in hiragana, katakana and rōmaji. The island has an area of 21 km2. The most prominent feature is Mount Suribachi on the southern tip, named after a Japanese grinding bowl, the summit of Mount Suribachi is the highest point on the island. Iwo Jima is unusually flat and featureless for a volcanic island, Suribachi is the only obvious volcanic feature, as it is only the resurgent dome of a larger submerged volcanic caldera. 80 km north of the island is North Iwo Jima and 59 kilometres south is South Iwo Jima, just south of Minami-Iō-jima are the Mariana Islands. Iwo Jima has a history of volcanic activity a few times per year. Late 1779, Captain Cooks surveying crew landed on a beach which is now 40 m above sea level due to volcanic uplifting. Such uplifting occurs on the island at a rate of between 100 and 800 mm per year, with an average rate of 200 mm per year. Early 1945, USA armed forces landed on a beach which as of 2015 was 17 metres above sea level due to volcanic uplift,28 March 1957, Phreatic eruption without warning 2 km northeast of Suribachi, lasted 65 minutes and ejected material 30 m high from one crater. Another crater,30 m wide and 15 m deep, formed by collapse 50 minutes after the eruption ended,31 March 1957, Gas emissions increased. 9-10 March 1982,5 phreatic eruptions from vents on the northwest shore of Iwo-jima,21 September 2001, Submarine eruption from 3 vents southeast of Iwo-jima. It built a 10 m diameter pyroclastic cone,19 October 2001, A small phreatic eruption at Idogahama, made a crater 10 m wide and 2–3 m deep
22.
Okinawa Prefecture
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The larger are mostly high islands and the smaller ones are mostly coral islands. The largest of the islands is Okinawa, the climate of the islands ranges from humid subtropical climate in the north to tropical rainforest climate in the south. Precipitation is very high, and is affected by the rainy season, the islands beyond the Tokara Strait are characterized by their coral reefs. The Amami, Okinawa, Miyako, and Yaeyama Islands have a native population collectively called the Ryukyuan people, the varied Ryukyuan languages are traditionally spoken on these islands, and the major islands have their own distinct languages. In modern times, the Japanese language is the language of the islands. The northern islands are called the Satsunan Islands, while the southern part of the chain are called the Ryukyu Islands in Japanese. Following are the grouping and names used by the Hydrographic and Oceanographic Department of the Japan Coast Guard, the islands are listed from north to south where possible. Nansei Islands Satsunan Islands Ōsumi Islands with, Tanegashima, Yaku, Kuchinoerabu, Mageshima in the North-Eastern Group and they agreed on February 15,2010, to use Amami-guntō for the Amami Islands, prior to that, Amami-shotō had also been used. The English and Japanese uses of the term Ryukyu differ, in English, the term Ryukyu may apply to the entire chain of islands, while in Japanese Ryukyu usually refers only to the islands that were previously part of the Ryūkyū Kingdom after 1624. Nansei-shotō is the name for the whole island chain in Japanese. Japan has used the name on nautical charts since 1907, based on the Japanese charts, the international chart series uses Nansei Shoto. Nansei literally means southwest, the direction of the chain from mainland Japan. Some humanities scholars prefer the uncommon term Ryūkyū-ko for the island chain. In geology, however, the Ryukyu Arc includes subsurface structures such as the Okinawa Trough, the name of Ryūkyū is strongly associated with the Ryūkyū Kingdom, a kingdom that originated from the Okinawa Islands and subjected the Sakishima and Amami Islands. The name is considered outdated in Japanese although some entities of Okinawa still bear the name. In Japanese, the Ryukyu Islands cover only the Okinawa, Miyako, the northern half of the island chain is referred to as the Satsunan Islands in Japanese, as opposed to Northern Ryukyu Islands in English. Humanities scholars generally agree that the Amami, Okinawa, Miyako, there is, however, no good name for the group. The native population do not have their own name, since they do not recognize themselves as a group this size, Ryukyu is the principal candidate because it roughly corresponds to the maximum extent of the Ryūkyū Kingdom
23.
Regiment
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A regiment is a military unit. Their role and size varies markedly, depending on the country, in Medieval Europe, the term regiment denoted any large body of front-line soldiers, recruited or conscripted in one geographical area, by a leader who was often also the feudal lord of the soldiers. By the 17th century, a regiment was usually about a thousand personnel. In many armies, the first role has been assumed by independent battalions, battlegroups, task forces, brigades and other, similarly-sized operational units. By the beginning of the 18th century, regiments in most European continental armies had evolved into permanent units with distinctive titles and uniforms, when at full strength, an infantry regiment normally comprised two field battalions of about 800 men each or 8–10 companies. In some armies, an independent regiment with fewer companies was labelled a demi-regiment, a cavalry regiment numbered 600 to 900 troopers, making up a single entity. With the widespread adoption of conscription in European armies during the nineteenth century, the regimental system underwent modification. Prior to World War I, a regiment in the French, German, Russian. As far as possible, the battalions would be garrisoned in the same military district, so that the regiment could be mobilized. A cavalry regiment by contrast made up an entity of up to 1,000 troopers. Usually, the regiment is responsible for recruiting and administering all of a military career. Depending upon the country, regiments can be either combat units or administrative units or both and this is often contrasted to the continental system adopted by many armies. Generally, divisions are garrisoned together and share the same installations, thus, in divisional administration, soldiers and officers are transferred in and out of divisions as required. Some regiments recruited from specific areas, and usually incorporated the place name into the regimental name. In other cases, regiments would recruit from an age group within a nation. In other cases, new regiments were raised for new functions within an army, e. g. the Fusiliers, the Parachute Regiment, a key aspect of the regimental system is that the regiment or battalion is the fundamental tactical building block. This flows historically from the period, when battalions were widely dispersed and virtually autonomous. For example, a regiment might include different types of battalions of different origins, within the regimental system, soldiers, and usually officers, are always posted to a tactical unit of their own regiment whenever posted to field duty
24.
M101 howitzer
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The 105 mm M2A1 howitzer was a howitzer developed and used by the United States. It was the standard U. S. light field howitzer in World War II, entering production in 1941, it quickly gained a reputation for accuracy and a powerful punch. The M101A1 fired 105-millimetre high explosive semi-fixed ammunition and had a range of 11,270 metres, all of these qualities of the weapon, along with its widespread production, led to its adoption by many countries after the war. Its ammunition type also became the standard for foreign countries later models. During the Second World War, U. S. artillery regiments consisted of an HQ detachment, one 155mm artillery battalion, both the 155mm and 105mm battalions had twelve guns each, divided into three batteries of four guns. That gave each regiment a total of twelve 155mm howitzers, with an HE M1 shell fired at 9000 meters, the probable error in range was 41 meters, while the probable error in line was 10 meters. The U. S. military artillery designation system was changed in 1962, the gun continued to see service in the Korean and Vietnam Wars. Though a similar model, the M102 howitzer, shared the roles in battle. Today, the M101A1 has been retired by the U. S. military, though it continues to see service with many other countries. By the end of the Second World War,8,536 105mm towed howitzers had been built and post-war production continued at Rock Island Arsenal until 1953, by which time 10,202 had been built. The Canadian Forces continued to use the M2A1 as the C2 Howitzer until 1997, the changes include a longer barrel, a muzzle brake, reinforced trails and the removal of shield flaps. It remains the standard light howitzer of Canadian Forces Reserve units, the C3 is used by Reserve units in Glacier National Park in British Columbia as a means of avalanche control. In addition, the M101 has found a use in the U. S. as an avalanche control gun. Today upgraded M2A1 howitzers are still being used by the Peoples Army of Vietnam and it continues to remain as the primary tactical field-howitzer of the VPA. M2 Howitzers are still in limited service in the Australian Army Reserve, in regular service they were replaced by the 105mm L119 Hamel gun and the 155-millimetre M198 howitzers. Two M2 howitzers are employed in providing the gun salute at Kristiansten Fortress, in Trondheim. M101/M2 is one of three approved salute guns in the Norwegian armed forces, and have reduced to a caliber of 75 millimetres for this purpose. They are used for gun salute also at Rena and Setermoen, M2 - minor changes to the chamber to allow use of fixed ammunition
25.
M114 howitzer
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The M114155 mm howitzer was a towed howitzer developed and used by the United States Army. It was first produced in 1942 as an artillery piece under the designation of 155 mm Howitzer M1. It saw service with the US Army during World War II, the Korean War, in some countries, the M114 still remains in service. So development began anew with a designed to be used for either the 155 mm howitzer or the 4. 7-inch gun. This was completed by 15 May 1941 when the Howitzer M1 on the Carriage M1 was standardized, the howitzer itself differed from the older model by a lengthened barrel of 20 calibers and a new breech mechanism. Uniquely it was the sole slow-cone interrupted screw mechanism to enter service after 1920 and this meant that two separate movements were necessary to open the breech, versus the single movement of the steep cone mechanism that simultaneously rotated and withdrew the breech. The M1A1 was redesignated as the M114A1 in 1962, the carriage was also used by the 4.5 inch Gun M-1. It went through a number of changes over time. The original Warner electric brakes were replaced by Westinghouse air brakes on the M1A1, both the M1 and M1A1 carriages used a mid-axle firing pedestal that was extended by a ratchet mechanism. The M1A2 replaced the ratchet with a system and also modified the traveling lock. The T-9 and T-10 carriages were projects using low-grade steel alloys that were canceled when no longer needed. The T-16 was a carriage using high-grade steel that was estimated to save some 1,200 lb, work began in July 1945 and continued after the war. A mid-1960s variant was the 155mm XM123 & M123A1 auxiliary-propelled howitzers, the extra weight on the left trail displaced the howitzer after each round was fired requiring it to be realigned and the project was abandoned. The concept was copied from the Soviet 85mm SD-44 auxiliary-propelled antitank gun developed in 1954, the non howitzer was experimentally mounted on a lengthened chassis of the M5 light tank. The resulting vehicle received the designation 155 mm Howitzer Motor Carriage T64, a single prototype was built before the T64 project was abandoned in favor of T64E1, based on the M24 Chaffee light tank chassis. This was eventually adopted as the M41 Howitzer Motor Carriage and saw action in the Korean War, towards the end of the Korean War the US Army replaced the M41 self-propelled howitzer with the M44 self-propelled howitzer. The gun fired separate loading, bagged charge ammunition, with up to seven different propelling charges, muzzle velocity, range and penetration in the tables below are for maximum charge in form of complete M4A1 propelling charge. Afghanistan Argentina Tunisia Bosnia and Herzegovina Brazil Cameroon Chile Ecuador Iran South Korea Lebanon Morocco Pakistan,144 in service with the Pakistan Army. S
26.
Allotropes of phosphorus
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Elemental phosphorus can exist in several allotropes, the most common of which are white and red solids. Solid violet and black allotropes are also known, gaseous phosphorus exists as diphosphorus and atomic phosphorus. White phosphorus, yellow phosphorus or simply tetraphosphorus exists as molecules made up of four atoms in a tetrahedral structure, the tetrahedral arrangement results in ring strain and instability. The molecule is described as consisting of six single P–P bonds, two different crystalline forms are known. The α form, which is stable under standard conditions, has a cubic crystal structure. It transforms reversibly into the β form at 195.2 K, the β form is believed to have a hexagonal crystal structure. White phosphorus is a translucent waxy solid that quickly becomes yellow when exposed to light, for this reason it is also called yellow phosphorus. It glows greenish in the dark, is flammable and pyrophoric upon contact with air as well as toxic. White phosphorus is slightly soluble in water and it can be stored under water. Indeed, white phosphorus is only safe from self-igniting when it is submerged in water and it is soluble in benzene, oils, carbon disulfide, and disulfur dichloride. The white allotrope can be produced using different methods. In the industrial process, phosphate rock is heated in an electric or fuel-fired furnace in the presence of carbon, elemental phosphorus is then liberated as a vapour and can be collected under phosphoric acid. An idealized equation for this reaction is shown for calcium phosphate,2 Ca32 +8 C → P4 +8 CO2 +6 Ca White phosphorus has an appreciable vapour pressure at ordinary temperatures. The vapour density indicates that the vapour is composed of P4 molecules up to about 800 °C, above that temperature, dissociation into P2 molecules occurs. It ignites spontaneously in air at about 50 °C, and at lower temperatures if finely divided. This combustion gives phosphorus oxide, P4 +5 O2 → P 4O10 Because of this property, although white phosphorus converts to the thermodynamically more stable red allotrope, the formation of the cubic P8 molecule is not observed in the condensed phase. Analogs of this molecule have been prepared from phosphaalkynes. Red phosphorus may be formed by heating white phosphorus to 300 °C in the absence of air or by exposing white phosphorus to sunlight, red phosphorus exists as an amorphous network
27.
Sulfur mustard
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Sulfur mustard, commonly known as mustard gas, is a cytotoxic and vesicant chemical warfare agent with the ability to form large blisters on exposed skin and in the lungs. Related chemical compounds with chemical structure and similar properties form a class of compounds known collectively as sulfur mustards or mustard agents. Pure sulfur mustards are colorless, viscous liquids at room temperature, when used in impure form, such as warfare agents, they are usually yellow-brown in color and have an odor resembling mustard plants, garlic, or horseradish, hence the name. Sulfur mustard was originally assigned the name LOST, after the scientists Wilhelm Lommel and Wilhelm Steinkopf, Mustard agents are regulated under the 1993 Chemical Weapons Convention. Three classes of chemicals are monitored under this Convention, with sulfur and nitrogen mustard grouped in Schedule 1, Mustard agents could be deployed on the battlefield by means of artillery shells, aerial bombs, rockets, or by spraying from warplanes. Sulfur mustard is the compound with formula 2S. Sulfur mustard is a liquid at normal temperatures. The pure compound has a point of 14 °C and decomposes before boiling at 218 °C. The compound readily eliminates a chloride ion by intramolecular nucleophilic substitution to form a cyclic sulfonium ion, oxidative stress would be another pathology involved in sulfur mustard toxicity. Sulfur mustard is not very soluble in water but is soluble in fat. In the wider sense, compounds with the structural element BCH2CH2X, where X is any leaving group, such compounds can form cyclic onium ions that are good alkylating agents. Examples are bisether, the amines, and sulfur sesquimustard, which has two α-chloroethyl thioether groups connected by an ethylene group and these compounds have a similar ability to alkylate DNA, but their physical properties, e. g. melting points, may vary. Mustard agent has extremely powerful vesicant effects on its victims, in addition, it is strongly mutagenic and carcinogenic, due to its alkylating properties. Because people exposed to mustard agent rarely suffer immediate symptoms, and mustard-contaminated areas may appear completely normal and these are chemical burns and are very debilitating. Mustard agent vapor easily penetrates clothing fabrics such as wool or cotton, if the victims eyes were exposed then they become sore, starting with conjunctivitis, after which the eyelids swell, resulting in temporary blindness. In rare cases of extreme exposure to sulfur mustard vapors, corneal ulceration, anterior chamber scarring. In these severe and infrequent cases, corneal transplantation has been used as a treatment option, miosis may also occur, which is probably the result from the cholinomimetic activity of mustard. At very high concentrations, if inhaled, mustard agent causes bleeding and blistering within the system, damaging mucous membranes
28.
Chemical Weapons Convention
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The Chemical Weapons Convention is an arms control treaty which outlaws the production, stockpiling, and use of chemical weapons and their precursors. The treaty entered force in 1997. The parties main obligation under the convention is to prohibit the use and production of chemical weapons, the destruction activities are verified by the OPCW. As of April 2016,192 states have given their consent to be bound by the CWC, israel has signed but not ratified the agreement, while three other UN member states have neither signed nor acceded to the treaty. Most recently, Angola deposited its instrument of accession to the CWC on 16 September 2015, as of October 2016, about 93% of the worlds declared stockpile of chemical weapons had been destroyed. On 3 September 1992 the Conference on Disarmament submitted to the U. N. General Assembly its annual report, the General Assembly approved the Convention on 30 November 1992, and the U. N. Secretary-General then opened the Convention for signature in Paris on 13 January 1993. The CWC remained open for signature until its entry into force on 29 April 1997,180 days after the deposit of the 65th instrument of ratification, the convention augments the Geneva Protocol of 1925 for chemical weapons and includes extensive verification measures such as on-site inspections. It does not, however, cover biological weapons, the convention is administered by the Organisation for the Prohibition of Chemical Weapons, which acts as the legal platform for specification of the CWC provisions. The Conference of the States Parties is mandated to change the CWC, the Technical Secretariat of the organization conducts inspections to ensure compliance of member states. These inspections target destruction facilities, chemical production facilities which have been dismantled or converted for civil use. The Secretariat may furthermore conduct investigations of alleged use of chemical weapons, the classification is based on the quantities of the substance produced commercially for legitimate purposes. Each class is split into Part A, which are chemicals that can be used directly as weapons and this includes all such chemicals, regardless of their origin or of their method of production, and regardless of whether they are produced in facilities, in munitions or elsewhere. Schedule 1 chemicals have few, or no uses outside chemical weapons and these may be produced or used for research, medical, pharmaceutical or chemical weapon defence testing purposes but production above 100 grams per year must be declared to the OPCW. A country is limited to possessing a maximum of 1 tonne of these materials, examples are sulfur mustard and nerve agents, and substances which are solely used as precursor chemicals in their manufacture. A few of these chemicals have very small scale non-military applications, schedule 2 chemicals have legitimate small-scale applications. Manufacture must be declared and there are restrictions on export to countries which are not CWC signatories, an example is thiodiglycol which can be used in the manufacture of mustard agents, but is also used as a solvent in inks. Schedule 3 chemicals have large-scale uses apart from chemical weapons, plants which manufacture more than 30 tonnes per year must be declared and can be inspected, and there are restrictions on export to countries which are not CWC signatories. The treaty also deals with carbon compounds called in the treaty discrete organic chemicals and these are any carbon compounds apart from long chain polymers, oxides, sulfides and metal carbonates, such as organophosphates
29.
TNT
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Trinitrotoluene, or more specifically 2,4, 6-trinitrotoluene, is a chemical compound with the formula C6H23CH3. This yellow-colored solid is used as a reagent in chemical synthesis. The explosive yield of TNT is considered to be the measure of bombs. In chemistry, TNT is used to charge transfer salts. TNT was first prepared in 1863 by German chemist Julius Wilbrand and its potential as an explosive was not appreciated for several years, mainly because it was so difficult to detonate and because it was less powerful than alternatives. Its explosive properties were first discovered by another German chemist, Carl Häussermann, the German armed forces adopted it as a filling for artillery shells in 1902. The British started replacing lyddite with TNT in 1907, TNT is still widely used by the United States military, as well as construction companies around the world. The majority of TNT currently used by the US military is manufactured by Radford Army Ammunition Plant near Radford, in industry, TNT is produced in a three-step process. First, toluene is nitrated with a mixture of sulfuric and nitric acid to produce mononitrotoluene, the MNT is separated and then renitrated to dinitrotoluene. In the final step, the DNT is nitrated to trinitrotoluene using a mixture of nitric acid. Nitric acid is consumed by the process, but the diluted sulfuric acid can be reconcentrated and reused. The rinse water from sulphitation is known as red water and is a significant pollutant, control of nitrogen oxides in feed nitric acid is very important because free nitrogen dioxide can result in oxidation of the methyl group of toluene. This reaction is exothermic and carries with it the risk of a runaway reaction leading to an explosion. In the laboratory,2,4, 6-trinitrotoluene is produced by a two-step process, a nitrating mixture of concentrated nitric and sulfuric acids is used to nitrate toluene to a mixture of mono- and di-nitrotoluene isomers, with careful cooling to maintain temperature. The nitrated toluenes are then separated, washed with dilute sodium bicarbonate to remove oxides of nitrogen, towards the end of the nitration, the mixture is heated on a steam bath. The trinitrotoluene is separated, washed with a solution of sodium sulfite. TNT is one of the most commonly used explosives for military, industrial, TNT has been used in conjunction with hydraulic fracturing, a process used to recover oil and gas from shale formations. The technique involves displacing and detonating nitroglycerin in hydraulically induced fractures followed by wellbore shots using pelletized TNT, TNT is valued partly because of its insensitivity to shock and friction, with reduced risk of accidental detonation compared to more sensitive explosives such as nitroglycerin
30.
Smoke screen
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A smoke screen is smoke released to mask the movement or location of military units such as infantry, tanks, aircraft or ships. Smoke screens are commonly deployed either by a canister or generated by a vehicle and these are canister-type grenades used as a ground-to-ground or ground-to-air signaling device. The body consists of a sheet metal cylinder with a few emission holes on top. In those that produce colored smoke, the filler consists of 250 to 350 grams of colored smoke mixture, in those that produce screening smoke, the filler usually consists of HC smoke mixture or TA smoke mixture. Another type of smoke grenade is filled with phosphorus, which is spread by explosive action. The phosphorus catches fire in the presence of air, and burns with a brilliant yellow flame, WP grenades double as incendiary grenades. Artillery and mortars can fire smoke generating munitions, and are the main means of generating tactical smokescreens on land. As with grenades, artillery shells are available as both emission type smoke shell, and bursting smoke shell, mortars nearly always use bursting smoke rounds because of the smaller size of mortar bombs and the greater efficiency of bursting rounds. Very large or sustained smoke screens are produced by a smoke generator and this machine heats a volatile material to evaporate it, then mixes the vapor with cool external air at a controlled rate so it condenses to a mist with a controlled droplet size. Cruder designs simply boiled waste oil over a heater, while more sophisticated ones sprayed a specially formulated oily composition through nozzles onto a heated plate. Choice of a oil, and careful control of cooling rate. This produces a very effective obscuration per weight of material used and this screen can then be sustained as long as the generator is supplied with oil, and—especially if a number of generators are used—the screen can build up to a considerable size. One 50 gallon drum of fog oil can obscure 60 miles of land in 15 minutes, whilst producing very large amounts of smoke relatively cheaply, these generators have a number of disadvantages. They are much slower to respond than pyrotechnic sources, and require a piece of equipment to be sited at the point of emission of the smoke. They are also heavy and not readily portable, which is a significant problem if the wind shifts. To overcome this problem they may be used in fixed posts widely dispersed over the battlefield. An example of the latter is the M56 Coyote generator, many armoured fighting vehicles can create smoke screens in a similar way, generally by injecting diesel fuel onto the hot exhaust. Warships have sometimes used a variation of the smoke generator
31.
Austria
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Austria, officially the Republic of Austria, is a federal republic and a landlocked country of over 8.7 million people in Central Europe. It is bordered by the Czech Republic and Germany to the north, Hungary and Slovakia to the east, Slovenia and Italy to the south, the territory of Austria covers 83,879 km2. The terrain is mountainous, lying within the Alps, only 32% of the country is below 500 m. The majority of the population speaks local Bavarian dialects of German as their native language, other local official languages are Hungarian, Burgenland Croatian, and Slovene. The origins of modern-day Austria date back to the time of the Habsburg dynasty, from the time of the Reformation, many northern German princes, resenting the authority of the Emperor, used Protestantism as a flag of rebellion. Following Napoleons defeat, Prussia emerged as Austrias chief competitor for rule of a greater Germany, Austrias defeat by Prussia at the Battle of Königgrätz, during the Austro-Prussian War of 1866, cleared the way for Prussia to assert control over the rest of Germany. In 1867, the empire was reformed into Austria-Hungary, Austria was thus the first to go to war in the July Crisis, which would ultimately escalate into World War I. The First Austrian Republic was established in 1919, in 1938 Nazi Germany annexed Austria in the Anschluss. This lasted until the end of World War II in 1945, after which Germany was occupied by the Allies, in 1955, the Austrian State Treaty re-established Austria as a sovereign state, ending the occupation. In the same year, the Austrian Parliament created the Declaration of Neutrality which declared that the Second Austrian Republic would become permanently neutral, today, Austria is a parliamentary representative democracy comprising nine federal states. The capital and largest city, with a population exceeding 1.7 million, is Vienna, other major urban areas of Austria include Graz, Linz, Salzburg and Innsbruck. Austria is one of the richest countries in the world, with a nominal per capita GDP of $43,724, the country has developed a high standard of living and in 2014 was ranked 21st in the world for its Human Development Index. Austria has been a member of the United Nations since 1955, joined the European Union in 1995, Austria also signed the Schengen Agreement in 1995, and adopted the euro currency in 1999. The German name for Austria, Österreich, meant eastern realm in Old High German, and is cognate with the word Ostarrîchi and this word is probably a translation of Medieval Latin Marchia orientalis into a local dialect. Austria was a prefecture of Bavaria created in 976, the word Austria is a Latinisation of the German name and was first recorded in the 12th century. Accordingly, Norig would essentially mean the same as Ostarrîchi and Österreich, the Celtic name was eventually Latinised to Noricum after the Romans conquered the area that encloses most of modern-day Austria, around 15 BC. Noricum later became a Roman province in the mid-first century AD, heers hypothesis is not accepted by linguists. Settled in ancient times, the Central European land that is now Austria was occupied in pre-Roman times by various Celtic tribes, the Celtic kingdom of Noricum was later claimed by the Roman Empire and made a province
32.
Belgium
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Belgium, officially the Kingdom of Belgium, is a sovereign state in Western Europe bordered by France, the Netherlands, Germany, Luxembourg, and the North Sea. It is a small, densely populated country which covers an area of 30,528 square kilometres and has a population of about 11 million people. Additionally, there is a group of German-speakers who live in the East Cantons located around the High Fens area. Historically, Belgium, the Netherlands and Luxembourg were known as the Low Countries, the region was called Belgica in Latin, after the Roman province of Gallia Belgica. From the end of the Middle Ages until the 17th century, today, Belgium is a federal constitutional monarchy with a parliamentary system of governance. It is divided into three regions and three communities, that exist next to each other and its two largest regions are the Dutch-speaking region of Flanders in the north and the French-speaking southern region of Wallonia. The Brussels-Capital Region is a bilingual enclave within the Flemish Region. A German-speaking Community exists in eastern Wallonia, Belgiums linguistic diversity and related political conflicts are reflected in its political history and complex system of governance, made up of six different governments. Upon its independence, declared in 1830, Belgium participated in the Industrial Revolution and, during the course of the 20th century, possessed a number of colonies in Africa. This continuing antagonism has led to several far-reaching reforms, resulting in a transition from a unitary to a federal arrangement during the period from 1970 to 1993. Belgium is also a member of the Eurozone, NATO, OECD and WTO. Its capital, Brussels, hosts several of the EUs official seats as well as the headquarters of major international organizations such as NATO. Belgium is also a part of the Schengen Area, Belgium is a developed country, with an advanced high-income economy and is categorized as very high in the Human Development Index. A gradual immigration by Germanic Frankish tribes during the 5th century brought the area under the rule of the Merovingian kings, a gradual shift of power during the 8th century led the kingdom of the Franks to evolve into the Carolingian Empire. Many of these fiefdoms were united in the Burgundian Netherlands of the 14th and 15th centuries, the Eighty Years War divided the Low Countries into the northern United Provinces and the Southern Netherlands. The latter were ruled successively by the Spanish and the Austrian Habsburgs and this was the theatre of most Franco-Spanish and Franco-Austrian wars during the 17th and 18th centuries. The reunification of the Low Countries as the United Kingdom of the Netherlands occurred at the dissolution of the First French Empire in 1815, although the franchise was initially restricted, universal suffrage for men was introduced after the general strike of 1893 and for women in 1949. The main political parties of the 19th century were the Catholic Party, French was originally the single official language adopted by the nobility and the bourgeoisie
33.
Bolivia
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Bolivia, officially known as the Plurinational State of Bolivia, is a landlocked country located in western-central South America. It is bordered to the north and east by Brazil, to the southeast by Paraguay, to the south by Argentina, to the southwest by Chile, and to the northwest by Peru. One-third of the country is the Andean mountain range, with one of its largest cities and principal economic centers, El Alto, Bolivia is one of two landlocked countries that lie outside Afro-Eurasia. Bolivia is geographically the largest landlocked country in the Americas, but remains a small country in economic. Before Spanish colonization, the Andean region of Bolivia was part of the Inca Empire, Spanish conquistadors arriving from Cuzco and Asunción took control of the region in the 16th century. During the Spanish colonial period Bolivia was administered by the Royal Audiencia of Charcas, spain built its empire in great part upon the silver that was extracted from Bolivias mines. After the first call for independence in 1809,16 years of war followed before the establishment of the Republic, named for Simón Bolívar, on 6 August 1825. Since independence, Bolivia has endured periods of political and economic instability, including the loss of peripheral territories to its neighbors, such as Acre. The countrys population, estimated at 11 million, is multiethnic, including Amerindians, Mestizos, the racial and social segregation that arose from Spanish colonialism has continued to the modern era. Spanish is the official and predominant language, although 36 indigenous languages also have official status, of which the most commonly spoken are Guarani, Aymara, modern Bolivia is constitutionally a unitary state, divided into nine departments. Its geography varies from the peaks of the Andes in the West, to the Eastern Lowlands and it is a developing country, with a medium ranking in the Human Development Index and a poverty level of 53 percent. Its main economic activities include agriculture, forestry, fishing, mining, and manufacturing such as textiles, clothing, refined metals. Bolivia is very wealthy in minerals, especially tin, Bolivia is named after Simón Bolívar, a leader in the Spanish American wars of independence. Sucre opted to create a new nation and, with local support. The original name was Republic of Bolívar, some days later, congressman Manuel Martín Cruz proposed, If from Romulus comes Rome, then from Bolívar comes Bolivia. The name was approved by the Republic on 3 October 1825, the region now known as Bolivia had been occupied for over 2,500 years when the Aymara arrived. However, present-day Aymara associate themselves with the ancient civilization of the Tiwanaku culture which had its capital at Tiwanaku, the capital city of Tiwanaku dates from as early as 1500 BC when it was a small, agriculturally based village. The community grew to urban proportions between AD600 and AD800, becoming an important regional power in the southern Andes
34.
Brazil
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Brazil, officially the Federative Republic of Brazil, is the largest country in both South America and Latin America. As the worlds fifth-largest country by area and population, it is the largest country to have Portuguese as an official language. Its Amazon River basin includes a vast tropical forest, home to wildlife, a variety of ecological systems. This unique environmental heritage makes Brazil one of 17 megadiverse countries, Brazil was inhabited by numerous tribal nations prior to the landing in 1500 of explorer Pedro Álvares Cabral, who claimed the area for the Portuguese Empire. Brazil remained a Portuguese colony until 1808, when the capital of the empire was transferred from Lisbon to Rio de Janeiro, in 1815, the colony was elevated to the rank of kingdom upon the formation of the United Kingdom of Portugal, Brazil and the Algarves. Independence was achieved in 1822 with the creation of the Empire of Brazil, a state governed under a constitutional monarchy. The ratification of the first constitution in 1824 led to the formation of a bicameral legislature, the country became a presidential republic in 1889 following a military coup détat. An authoritarian military junta came to power in 1964 and ruled until 1985, Brazils current constitution, formulated in 1988, defines it as a democratic federal republic. The federation is composed of the union of the Federal District, the 26 states, Brazils economy is the worlds ninth-largest by nominal GDP and seventh-largest by GDP as of 2015. A member of the BRICS group, Brazil until 2010 had one of the worlds fastest growing economies, with its economic reforms giving the country new international recognition. Brazils national development bank plays an important role for the economic growth. Brazil is a member of the United Nations, the G20, BRICS, Unasul, Mercosul, Organization of American States, Organization of Ibero-American States, CPLP. Brazil is a power in Latin America and a middle power in international affairs. One of the worlds major breadbaskets, Brazil has been the largest producer of coffee for the last 150 years and it is likely that the word Brazil comes from the Portuguese word for brazilwood, a tree that once grew plentifully along the Brazilian coast. In Portuguese, brazilwood is called pau-brasil, with the word brasil commonly given the etymology red like an ember, formed from Latin brasa and the suffix -il. As brazilwood produces a red dye, it was highly valued by the European cloth industry and was the earliest commercially exploited product from Brazil. The popular appellation eclipsed and eventually supplanted the official Portuguese name, early sailors sometimes also called it the Land of Parrots. In the Guarani language, a language of Paraguay, Brazil is called Pindorama
35.
Cambodia
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Cambodia, officially known as the Kingdom of Cambodia, is a country located in the southern portion of the Indochina Peninsula in Southeast Asia. It is 181,035 square kilometres in area, bordered by Thailand to the northwest, Laos to the northeast, Vietnam to the east, Cambodia has a population of over 15 million. The official religion is Theravada Buddhism, practiced by approximately 95 percent of the population, the countrys minority groups include Vietnamese, Chinese, Chams, and 30 hill tribes. The capital and largest city is Phnom Penh, the political, economic, the kingdom is a constitutional monarchy with Norodom Sihamoni, a monarch chosen by the Royal Throne Council, as head of state. The head of government is Hun Sen, who is currently the longest serving leader in South East Asia and has ruled Cambodia for over 25 years. In 802 AD, Jayavarman II declared himself king, uniting the warring Khmer princes of Chenla under the name Kambuja. The Indianized kingdom built monumental temples including Angkor Wat, now a World Heritage Site, after the fall of Angkor to Ayutthaya in the 15th century, a reduced and weakened Cambodia was then ruled as a vassal state by its neighbours. In 1863 Cambodia became a protectorate of France which doubled the size of the country by reclaiming the north, the Vietnam War extended into the country with the US bombing of Cambodia from 1969 until 1973. Following the Cambodian coup of 1970, the king gave his support to his former enemies. Following the 1991 Paris Peace Accords, Cambodia was governed briefly by a United Nations mission, the UN withdrew after holding elections in which around 90 percent of the registered voters cast ballots. The 1997 coup placed power solely in the hands of Prime Minister Hun Sen and the Cambodian Peoples Party, important sociopolitical issues includes widespread poverty, pervasive corruption, lack of political freedoms, low human development, and a high rate of hunger. While per capita income remains low compared to most neighbouring countries, agriculture remains the dominant economic sector, with strong growth in textiles, construction, garments, and tourism leading to increased foreign investment and international trade. Cambodia scored dismally in an annual index ranking the rule of law in 102 countries, placing 99th overall, Cambodia also faces environmental destruction as an imminent problem. The most severe activity in this regard is considered to be the countrywide deforestation, the Kingdom of Cambodia is the official English name of the country. The English Cambodia is an anglicisation of the French Cambodge, which in turn is the French transliteration of the Khmer Kampuchea, Kampuchea is the shortened alternative to the countrys official name in Khmer, Preah Reacheanachak Kampuchea. The Khmer endonym Kampuchea derives from the Sanskrit name Kambujadeśa, composed of देश, desa and कम्बोज, Kambujas, colloquially, Cambodians refer to their country as either Srok Khmer, meaning Khmers Land, or the slightly more formal Prateh Kampuchea, literally Country of Kampuchea. The name Cambodia is used most often in the Western world while Kampuchea is more used in the East. Excavations in its lower layers produced a series of dates as of 6000 BC
36.
Colombia
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Colombia, officially the Republic of Colombia, is a transcontinental country largely situated in the northwest of South America, with territories in Central America. Colombia shares a border to the northwest with Panama, to the east with Venezuela and Brazil and to the south with Ecuador and it shares its maritime limits with Costa Rica, Nicaragua, Honduras, Jamaica, Haiti and the Dominican Republic. It is a unitary, constitutional republic comprising thirty-two departments, the territory of what is now Colombia was originally inhabited by indigenous peoples including the Muisca, the Quimbaya and the Tairona. The Spanish arrived in 1499 and initiated a period of conquest and colonization ultimately creating the Viceroyalty of New Granada, independence from Spain was won in 1819, but by 1830 the Gran Colombia Federation was dissolved. What is now Colombia and Panama emerged as the Republic of New Granada, the new nation experimented with federalism as the Granadine Confederation, and then the United States of Colombia, before the Republic of Colombia was finally declared in 1886. Since the 1960s the country has suffered from an asymmetric low-intensity armed conflict, Colombia is one of the most ethnically and linguistically diverse countries in the world, and thereby possesses a rich cultural heritage. Cultural diversity has also influenced by Colombias varied geography. The urban centres are located in the highlands of the Andes mountains. Colombian territory also encompasses Amazon rainforest, tropical grassland and both Caribbean and Pacific coastlines, ecologically, it is one of the worlds 17 megadiverse countries, and the most densely biodiverse of these per square kilometer. Colombia is a power and a regional actor with the fourth-largest economy in Latin America, is part of the CIVETS group of six leading emerging markets and is an accessing member to the OECD. Colombia has an economy with macroeconomic stability and favorable growth prospects in the long run. The name Colombia is derived from the last name of Christopher Columbus and it was conceived by the Venezuelan revolutionary Francisco de Miranda as a reference to all the New World, but especially to those portions under Spanish and Portuguese rule. The name was adopted by the Republic of Colombia of 1819. When Venezuela, Ecuador and Cundinamarca came to exist as independent states, New Granada officially changed its name in 1858 to the Granadine Confederation. In 1863 the name was changed, this time to United States of Colombia. To refer to country, the Colombian government uses the terms Colombia. Owing to its location, the present territory of Colombia was a corridor of early human migration from Mesoamerica, the oldest archaeological finds are from the Pubenza and El Totumo sites in the Magdalena Valley 100 km southwest of Bogotá. These sites date from the Paleoindian period, at Puerto Hormiga and other sites, traces from the Archaic Period have been found
37.
Cyprus
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Cyprus, officially the Republic of Cyprus, is an island country in the Eastern Mediterranean and the third largest and third most populous island in the Mediterranean. It is located south of Turkey, west of Syria and Lebanon, northwest of Israel and Palestine, north of Egypt, the earliest known human activity on the island dates to around the 10th millennium BC. Archaeological remains from this include the well-preserved Neolithic village of Khirokitia. Cyprus was settled by Mycenaean Greeks in two waves in the 2nd millennium BC, Cyprus was placed under British administration based on Cyprus Convention in 1878 and formally annexed by Britain in 1914. While Turkish Cypriots made up 18% of the population, the partition of Cyprus and creation of a Turkish state in the north became a policy of Turkish Cypriot leaders, following nationalist violence in the 1950s, Cyprus was granted independence in 1960. On 15 July 1974, a coup détat was staged by Greek Cypriot nationalists and elements of the Greek military junta in an attempt at enosis and these events and the resulting political situation are matters of a continuing dispute. The Cyprus Republic has de jure sovereignty over the island of Cyprus, as well as its territorial sea and exclusive economic area, another nearly 4% of the islands area is covered by the UN buffer zone. The international community considers the part of the island as territory of the Republic of Cyprus occupied by Turkish forces. The occupation is viewed as illegal under law, amounting to illegal occupation of EU territory since Cyprus became a member of the European Union. Cyprus is a major tourist destination in the Mediterranean, on 1 January 2008, the Republic of Cyprus joined the eurozone. The earliest attested reference to Cyprus is the 15th century BC Mycenaean Greek
38.
Ethiopia
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Ethiopia, officially the Federal Democratic Republic of Ethiopia, is a country located in the Horn of Africa. It shares borders with Eritrea to the north and northeast, Djibouti and Somalia to the east, Sudan and South Sudan to the west, and Kenya to the south. With nearly 100 million inhabitants, Ethiopia is the most populous landlocked country in the world and it occupies a total area of 1,100,000 square kilometres, and its capital and largest city is Addis Ababa. Some of the oldest evidence for modern humans has been found in Ethiopia. It is widely considered as the region from modern humans first set out for the Middle East. According to linguists, the first Afroasiatic-speaking populations settled in the Horn region during the ensuing Neolithic era, tracing its roots to the 2nd millennium BC, Ethiopia was a monarchy for most of its history. During the first centuries AD, the Kingdom of Aksum maintained a unified civilization in the region, subsequently, many African nations adopted the colors of Ethiopias flag following their independence. It was the first independent African member of the 20th-century League of Nations, Ethiopias ancient Geez script, also known as Ethiopic, is one of the oldest alphabets still in use in the world. The Ethiopian calendar, which is seven years and three months behind the Gregorian calendar, co-exists alongside the Borana calendar. A slight majority of the population adheres to Christianity, while around a third follows Islam, the country is the site of the Migration to Abyssinia and the oldest Muslim settlement in Africa at Negash. A substantial population of Ethiopian Jews, known as Bete Israel, resided in Ethiopia until the 1980s, Ethiopia is a multilingual nation with around 80 ethnolinguistic groups, the four largest of which are the Oromiffa, Amhara, Somali, and Tigrayans. Most people in the country speak Afroasiatic languages of the Cushitic or Semitic branches, additionally, Omotic languages are spoken by ethnic minority groups inhabiting the southern regions. Nilo-Saharan languages are spoken by the nations Nilotic ethnic minorities. Ethiopia is the place of origin for the coffee bean which originated from the place called Kefa and it is a land of natural contrasts, with its vast fertile West, jungles, and numerous rivers, and the worlds hottest settlement of Dallol in its north. The Ethiopian Highlands are Africas largest continuous mountain ranges, and Sof Omar Caves contain Africas largest cave, Ethiopia has the most UNESCO World Heritage Sites in Africa. Ethiopia is one of the members of the UN, the Group of 24, the Non-Aligned Movement, G-77. In the 1970s and 1980s, Ethiopia suffered from civil wars, the country has begun to recover recently however, and now has the largest economy in East Africa and Central Africa. According to Global Fire Power, Ethiopia has the 42nd most powerful military in the world, the origin of the word Ethiopia is uncertain
39.
Greece
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Greece, officially the Hellenic Republic, historically also known as Hellas, is a country in southeastern Europe, with a population of approximately 11 million as of 2015. Athens is the capital and largest city, followed by Thessaloniki. Greece is strategically located at the crossroads of Europe, Asia, situated on the southern tip of the Balkan peninsula, it shares land borders with Albania to the northwest, the Republic of Macedonia and Bulgaria to the north, and Turkey to the northeast. Greece consists of nine regions, Macedonia, Central Greece, the Peloponnese, Thessaly, Epirus, the Aegean Islands, Thrace, Crete. The Aegean Sea lies to the east of the mainland, the Ionian Sea to the west, the Cretan Sea and the Mediterranean Sea to the south. Greece has the longest coastline on the Mediterranean Basin and the 11th longest coastline in the world at 13,676 km in length, featuring a vast number of islands, eighty percent of Greece is mountainous, with Mount Olympus being the highest peak at 2,918 metres. From the eighth century BC, the Greeks were organised into various independent city-states, known as polis, which spanned the entire Mediterranean region and the Black Sea. Greece was annexed by Rome in the second century BC, becoming a part of the Roman Empire and its successor. The Greek Orthodox Church also shaped modern Greek identity and transmitted Greek traditions to the wider Orthodox World, falling under Ottoman dominion in the mid-15th century, the modern nation state of Greece emerged in 1830 following a war of independence. Greeces rich historical legacy is reflected by its 18 UNESCO World Heritage Sites, among the most in Europe, Greece is a democratic and developed country with an advanced high-income economy, a high quality of life, and a very high standard of living. A founding member of the United Nations, Greece was the member to join the European Communities and has been part of the Eurozone since 2001. Greeces unique cultural heritage, large industry, prominent shipping sector. It is the largest economy in the Balkans, where it is an important regional investor, the names for the nation of Greece and the Greek people differ from the names used in other languages, locations and cultures. The earliest evidence of the presence of human ancestors in the southern Balkans, dated to 270,000 BC, is to be found in the Petralona cave, all three stages of the stone age are represented in Greece, for example in the Franchthi Cave. Neolithic settlements in Greece, dating from the 7th millennium BC, are the oldest in Europe by several centuries and these civilizations possessed writing, the Minoans writing in an undeciphered script known as Linear A, and the Mycenaeans in Linear B, an early form of Greek. The Mycenaeans gradually absorbed the Minoans, but collapsed violently around 1200 BC and this ushered in a period known as the Greek Dark Ages, from which written records are absent. The end of the Dark Ages is traditionally dated to 776 BC, the Iliad and the Odyssey, the foundational texts of Western literature, are believed to have been composed by Homer in the 7th or 8th centuries BC. With the end of the Dark Ages, there emerged various kingdoms and city-states across the Greek peninsula, in 508 BC, Cleisthenes instituted the worlds first democratic system of government in Athens
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Guatemala
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With an estimated population of around 15.8 million, it is the most populated state in Central America. Guatemala is a democracy, its capital and largest city is Nueva Guatemala de la Asunción. The territory of modern Guatemala once formed the core of the Maya civilization, most of the country was conquered by the Spanish in the 16th century, becoming part of the viceroyalty of New Spain. Guatemala attained independence in 1821 as part of the Federal Republic of Central America, from the mid to late 19th century, Guatemala experienced chronic instability and civil strife. Beginning in the early 20th century, it was ruled by a series of dictators backed by the United Fruit Company, in 1944, authoritarian leader Jorge Ubico was overthrown by a pro-democratic military coup, initiating a decade-long revolution that led to sweeping social and economic reforms. A U. S. -backed military coup in 1954 ended the revolution, from 1960 to 1996, Guatemala endured a bloody civil war fought between the US-backed government and leftist rebels, including genocidal massacres of the Maya population perpetrated by the military. As of 2014, Guatemala ranks 31st of 33 Latin American and Caribbean countries in terms of the Human Development Index, Guatemalas abundance of biologically significant and unique ecosystems includes a large number of endemic species and contributes to Mesoamericas designation as a biodiversity hotspot. The country is known for its rich and distinct culture. The name Guatemala comes from the Nahuatl word Cuauhtēmallān, or place of many trees and this was the name the Tlaxcaltecan soldiers who accompanied Pedro de Alvarado during the Spanish Conquest gave to this territory. The first evidence of habitation in Guatemala dates back to 12,000 BC. Evidence, such as obsidian arrowheads found in parts of the country. There is archaeological proof that early Guatemalan settlers were hunters and gatherers, pollen samples from Petén and the Pacific coast indicate that maize cultivation had been developed by 3500 BC. Sites dating back to 6500 BC have been found in the Quiché region in the Highlands, archaeologists divide the pre-Columbian history of Mesoamerica into the Preclassic period, the Classic period, and the Postclassic period. Until recently, the Preclassic was regarded as a period, with small villages of farmers who lived in huts. This period is characterized by urbanisation, the emergence of independent city-states and this lasted until approximately 900 AD, when the Classic Maya civilization collapsed. The Maya abandoned many of the cities of the lowlands or were killed off by a drought-induced famine. The cause of the collapse is debated, but the Drought Theory is gaining currency, supported by such as lakebeds, ancient pollen. A series of prolonged droughts, among other such as overpopulation, in what is otherwise a seasonal desert is thought to have decimated the Maya
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Japan
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Japan is a sovereign island nation in Eastern Asia. Located in the Pacific Ocean, it lies off the eastern coast of the Asia Mainland and stretches from the Sea of Okhotsk in the north to the East China Sea, the kanji that make up Japans name mean sun origin. 日 can be read as ni and means sun while 本 can be read as hon, or pon, Japan is often referred to by the famous epithet Land of the Rising Sun in reference to its Japanese name. Japan is an archipelago consisting of about 6,852 islands. The four largest are Honshu, Hokkaido, Kyushu and Shikoku, the country is divided into 47 prefectures in eight regions. Hokkaido being the northernmost prefecture and Okinawa being the southernmost one, the population of 127 million is the worlds tenth largest. Japanese people make up 98. 5% of Japans total population, approximately 9.1 million people live in the city of Tokyo, the capital of Japan. Archaeological research indicates that Japan was inhabited as early as the Upper Paleolithic period, the first written mention of Japan is in Chinese history texts from the 1st century AD. Influence from other regions, mainly China, followed by periods of isolation, from the 12th century until 1868, Japan was ruled by successive feudal military shoguns who ruled in the name of the Emperor. Japan entered into a period of isolation in the early 17th century. The Second Sino-Japanese War of 1937 expanded into part of World War II in 1941, which came to an end in 1945 following the bombings of Hiroshima and Nagasaki. Japan is a member of the UN, the OECD, the G7, the G8, the country has the worlds third-largest economy by nominal GDP and the worlds fourth-largest economy by purchasing power parity. It is also the worlds fourth-largest exporter and fourth-largest importer, although Japan has officially renounced its right to declare war, it maintains a modern military with the worlds eighth-largest military budget, used for self-defense and peacekeeping roles. Japan is a country with a very high standard of living. Its population enjoys the highest life expectancy and the third lowest infant mortality rate in the world, in ancient China, Japan was called Wo 倭. It was mentioned in the third century Chinese historical text Records of the Three Kingdoms in the section for the Wei kingdom, Wa became disliked because it has the connotation of the character 矮, meaning dwarf. The 倭 kanji has been replaced with the homophone Wa, meaning harmony, the Japanese word for Japan is 日本, which is pronounced Nippon or Nihon and literally means the origin of the sun. The earliest record of the name Nihon appears in the Chinese historical records of the Tang dynasty, at the start of the seventh century, a delegation from Japan introduced their country as Nihon
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Laos
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Present day Laos traces its historic and cultural identity to the kingdom of Lan Xang Hom Khao, which existed for four centuries as one of the largest kingdoms in Southeast Asia. Due to Lan Xangs central geographical location in Southeast Asia, the kingdom was able to become a hub for overland trade. After a period of conflict, Lan Xang broke off into three separate kingdoms— Luang Phabang, Vientiane and Champasak. In 1893, it became a French protectorate, with the three territories uniting to form what is now known as the country of Laos and it briefly gained independence in 1945 after Japanese occupation, but returned to French rule until it was granted autonomy in 1949. Laos became independent in 1953, with a monarchy under Sisavang Vong. Shortly after independence, a civil war ended the monarchy. Laos is a one-party socialist republic and it espouses Marxism and is governed by the Lao Peoples Revolutionary Party, in which the party leadership is dominated by military figures. The Socialist Republic of Vietnam and the Vietnam Peoples Army continue to have significant influence in Laos, other large cities include Luang Prabang, Savannakhet, and Pakse. Laos is a country with the politically and culturally dominant Lao people making up approximately 60 percent of the population. Mon-Khmer groups, the Hmong, and other hill tribes, accounting for 40 percent of the population, live in the foothills. It is a member of the Asia-Pacific Trade Agreement, Association of Southeast Asian Nations, East Asia Summit, Laos applied for membership of the World Trade Organization in 1997, on 2 February 2013, it was granted full membership. According to the anti-corruption non-governmental organisation Transparency International, Laos remains one of the most corrupt countries in the world and this has deterred foreign investment and created major problems with the rule of law, including the nations ability to enforce contract and business regulation. This has contributed to a third of the population of Laos currently living below the poverty line. Laos has an economy, with one of the lowest annual incomes in the world. In 2014, the country ranked 141st on the Human Development Index, according to the Global Hunger Index, Laos ranks as the 29th hungriest nation in the world out of the list of the 52 nations with the worst hunger situation. Laos has also had a human rights record. In the Lao language, the name is Muang Lao or Pathet Lao. Stone artefacts including Hoabinhian types have been found at sites dating to the Late Pleistocene in northern Laos, archaeological evidence suggests agriculturist society developed during the 4th millennium BC
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Tunisia
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Tunisia, officially the Republic of Tunisia is the northernmost country in Africa, covering 165,000 square kilometres. Its northernmost point, Cape Angela, is the northernmost point on the African continent and it is bordered by Algeria to the west and southwest, Libya to the southeast, and the Mediterranean Sea to the north and east. Tunisias population was estimated to be just under 11 million in 2014, Tunisias name is derived from its capital city, Tunis, which is located on Tunisias northeast coast. Geographically, Tunisia contains the end of the Atlas Mountains. Much of the rest of the land is fertile soil. Tunisia is a unitary semi-presidential representative democratic republic and it is considered to be the only full democracy in the Arab World. It has a human development index. In addition, Tunisia is also a state of the United Nations. Close relations with Europe – in particular with France and with Italy – have been forged through economic cooperation, privatisation, in ancient times, Tunisia was primarily inhabited by Berbers. Phoenician immigration began in the 12th century BC, these immigrants founded Carthage, a major mercantile power and a military rival of the Roman Republic, Carthage was defeated by the Romans in 146 BC. The Romans, who would occupy Tunisia for most of the eight hundred years, introduced Christianity. After several attempts starting in 647, the Arabs conquered the whole of Tunisia by 697, the Ottomans held sway for over three hundred years. The French colonization of Tunisia occurred in 1881, Tunisia gained independence with Habib Bourguiba and declared the Tunisian Republic in 1957. In 2011, the Tunisian Revolution resulted in the overthrow of President Zine El Abidine Ben Ali, the country voted for parliament again on 26 October 2014, and for President on 23 November 2014. The word Tunisia is derived from Tunis, an urban hub. The present form of the name, with its Latinate suffix -ia, the French derivative Tunisie was adopted in some European languages with slight modifications, introducing a distinctive name to designate the country. Other languages remained untouched, such as the Russian Туни́с and Spanish Túnez, in this case, the same name is used for both country and city, as with the Arabic تونس, and only by context can one tell the difference. The name Tunis can be attributed to different origins and it is generally associated with the Berber root ⵜⵏⵙ, transcribed tns, which means to lay down or encampment
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Turkey
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Turkey, officially the Republic of Turkey, is a transcontinental country in Eurasia, mainly in Anatolia in Western Asia, with a smaller portion on the Balkan peninsula in Southeast Europe. Turkey is a democratic, secular, unitary, parliamentary republic with a cultural heritage. The country is encircled by seas on three sides, the Aegean Sea is to the west, the Black Sea to the north, and the Mediterranean Sea to the south. The Bosphorus, the Sea of Marmara, and the Dardanelles, Ankara is the capital while Istanbul is the countrys largest city and main cultural and commercial centre. Approximately 70-80% of the countrys citizens identify themselves as ethnic Turks, other ethnic groups include legally recognised and unrecognised minorities. Kurds are the largest ethnic minority group, making up approximately 20% of the population, the area of Turkey has been inhabited since the Paleolithic by various ancient Anatolian civilisations, as well as Assyrians, Greeks, Thracians, Phrygians, Urartians and Armenians. After Alexander the Greats conquest, the area was Hellenized, a process continued under the Roman Empire. The Seljuk Sultanate of Rûm ruled Anatolia until the Mongol invasion in 1243, the empire reached the peak of its power in the 16th century, especially during the reign of Suleiman the Magnificent. During the war, the Ottoman government committed genocides against its Armenian, Assyrian, following the war, the conglomeration of territories and peoples that formerly comprised the Ottoman Empire was partitioned into several new states. Turkey is a member of the UN, an early member of NATO. Turkeys growing economy and diplomatic initiatives have led to its recognition as a regional power while her location has given it geopolitical, the name of Turkey is based on the ethnonym Türk. The first recorded use of the term Türk or Türük as an autonym is contained in the Old Turkic inscriptions of the Göktürks of Central Asia, the English name Turkey first appeared in the late 14th century and is derived from Medieval Latin Turchia. Similarly, the medieval Khazar Empire, a Turkic state on the shores of the Black. The medieval Arabs referred to the Mamluk Sultanate as al-Dawla al-Turkiyya, the Ottoman Empire was sometimes referred to as Turkey or the Turkish Empire among its European contemporaries. The Anatolian peninsula, comprising most of modern Turkey, is one of the oldest permanently settled regions in the world, various ancient Anatolian populations have lived in Anatolia, from at least the Neolithic period until the Hellenistic period. Many of these peoples spoke the Anatolian languages, a branch of the larger Indo-European language family, in fact, given the antiquity of the Indo-European Hittite and Luwian languages, some scholars have proposed Anatolia as the hypothetical centre from which the Indo-European languages radiated. The European part of Turkey, called Eastern Thrace, has also been inhabited since at least forty years ago. It is the largest and best-preserved Neolithic site found to date, the settlement of Troy started in the Neolithic Age and continued into the Iron Age
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Paraguay
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Paraguay lies on both banks of the Paraguay River, which runs through the center of the country from north to south. Due to its location in South America, it is sometimes referred to as Corazón de Sudamérica. Paraguay is one of the two landlocked countries that lie outside Afro-Eurasia, Paraguay is the smallest landlocked country in the Americas. The indigenous Guaraní had been living in Paraguay for at least a millennium before the Spanish conquered the territory in the 16th century, Spanish settlers and Jesuit missions introduced Christianity and Spanish culture to the region. Paraguay was a colony of the Spanish Empire, with few urban centers and settlers. Following independence from Spain in 1811, Paraguay was ruled by a series of dictators who generally implemented isolationist and protectionist policies and he was toppled in an internal military coup, and free multi-party elections were organized and held for the first time in 1993. A year later, Paraguay joined Argentina, Brazil and Uruguay to found Mercosur, as of 2009, Paraguays population was estimated to be at around 6.5 million, most of whom are concentrated in the southeast region of the country. The capital and largest city is Asunción, of which the area is home to nearly a third of Paraguays population. In contrast to most Latin American nations, Paraguays indigenous language and culture, Guaraní, in each census, residents predominantly identify as mestizo, reflecting years of intermarriage among the different ethnic groups. Guaraní is recognized as an official language alongside Spanish, and both languages are spoken in the country. There is no consensus for the derivation or meaning of the name Paraguay, the most common interpretations include, Born from water Riverine of many varieties River which originates a sea Fray Antonio Ruiz de Montoya said that it meant river crowned. The Spanish officer and scientist Félix de Azara suggests two derivations, the Payaguas, referring to the tribe who lived along the river. The French-Argentine historian and writer Paul Groussac argued that it meant river that flows through the sea, Paraguayan poet and ex-president Juan Natalicio González said it meant river of the inhabitants of the sea. Indigenous peoples have inhabited this area for thousands of years, pre-Columbian society in the region which is now Paraguay consisted of semi-nomadic tribes that were known for their warrior traditions. These indigenous tribes belonged to five language families, which was the basis of their major divisions. Differing language groups were generally competitive over resources and territories and they were further divided into tribes by speaking languages in branches of these families. Today 17 separate ethnolinguistic groups remain, the first Europeans in the area were Spanish explorers in 1516. The Spanish explorer Juan de Salazar de Espinosa founded the settlement of Asunción on 15 August 1537, the city eventually became the center of a Spanish colonial province of Paraguay
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Ordnance ML 4.2 inch Mortar
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The Ordnance ML4.2 inch Mortar was a heavy mortar used by the British Army during World War II, and by other armies postwar. The 4.2 inch mortar was a Smooth Bore weapon of the Stokes pattern and was designed by the Armaments Research and Development Establishment and it entered British service in 1942, where it was used to equip Royal Engineer chemical warfare companies. The Mark 3 became the standard model, the first combat use was at El Alamein, which expended all the HE ammunition in the theatre. Around mid-1943, the Royal Engineer chemical warfare companies were disbanded and this company was organized with sixteen 4. 2-inch Mortars, in four platoons of four mortars each. The mortars were somewhat slower in reaching the far east, although the Australian forces in the South West Pacific had them before troops fighting in Burma did. After World War II, the mortars were handed over to the Royal Artillery and they were used during the 1950s, also by airborne artillery, deployed to Kuwait in 1961 and manned by soldiers from air defence batteries during the Confrontation in Borneo in 1965. The 4. 2-inch Mortar entered production at the end of 1941 with a standard baseplate, the normal detachment was six men and it was transported with ammunition in a 10 cwt trailer, usually towed behind a Loyd Carrier. There was also an auxiliary baseplate that fitted around it, to increase its area for use on softer ground, later an integrated trailer/baseplate was developed, called the Mk 1 Mobile Baseplate. The wheels, which were on suspension arms, were unlocked and raised for firing, the Mk1/1 had detachable wheels, the mobile baseplate trailer mounting could be brought into action by 2 men. Regarding rate of fire, one source reports a crew putting 23 bombs in the air before the first impacted, both HE and smoke ammunition was used. Smoke include WP and Base Ejection, and in World War II other types for practice, in World War II, both streamlined and cylindrical bombs were available. Fighting Vehicles and Weapons of the Modern British Army, the Gunners - A History of Australian Artillery. Maintenance Manual for ML 2-inch, ML 3-inch and SB4. 2-inch Mortars Bishop, the Encyclopedia of Weapons of WWII. British Mortars of the Second World War
