1.
Submachine gun
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A submachine gun is a magazine-fed, automatic carbine designed to fire pistol cartridges. The term submachine gun was coined by John T. Thompson, the submachine gun was developed during World War I. At its zenith during World War II, millions of SMGs were made, after the war, new SMG designs appeared frequently. However, by the 1980s, SMG usage decreased, today, submachine guns have been largely replaced by assault rifles, which have a greater effective range and are capable of penetrating the helmets and body armor used by modern infantrymen. Carbine-type automatic weapons firing pistol rounds were developed during the stages of World War I by Italy, Germany. Their improved firepower and portability offered an advantage in trench warfare, in 1915, the Italians introduced the Villar-Perosa aircraft machine gun. It fired pistol-caliber 9mm Glisenti ammunition, but was not a true submachine gun and this odd design was then modified into the Beretta OVP carbine-type submachine gun, which then evolved into the Beretta Model 1918 after the end of World War I. Both the Beretta OVP and the Model 1918 had a wooden stock, a 25-round top-fed box magazine. The Germans initially used heavier versions of the P08 pistol equipped with a larger-capacity snail-drum magazine, by 1918, Bergmann Waffenfabrik had developed the MP18, the first practical submachine gun. This weapon fired the 9×19mm Parabellum round and used the same 32-round snail-drum magazine as the Luger P-08, the MP18 was used in significant numbers by German stormtroopers employing infiltration tactics, achieving some notable successes in the final year of the war. However, these were not enough to prevent Germanys collapse in November 1918, after World War I, the MP18 would evolve into the MP28/II SMG, which incorporated a simple 32-round box magazine, a semi & full auto selector, and other minor improvements. The Thompson submachine gun had been in development at approximately the time as the Bergmann. However, the war ended before prototypes could be shipped to Europe, although it had missed its chance to be the first purpose-designed submachine gun to enter service, it became the basis for later weapons and had the longest active service life of the three. However, the FBI and other U. S. police forces themselves showed no reluctance to use, eventually, the submachine gun was gradually accepted by many military organizations, especially as World War II loomed, with many countries developing their own designs. The Italians were among the first to develop submachine guns during World War I, however, they were slow to produce them during World War II. The Beretta Model 1938 was not available in numbers until 1943. The 38 was made in a series of improved and simplified models all sharing the same basic layout. The Beretta has two triggers, the front for semi-auto and rear for full-auto, most models use standard wooden stocks, although some models were fitted with an MP 40-style under-folding stock and are commonly mistaken for the German SMG
2.
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
3.
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
4.
Slovenia
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Slovenia, officially the Republic of Slovenia, is a nation state in southern Central Europe, located at the crossroads of main European cultural and trade routes. It is bordered by Italy to the west, Austria to the north, Hungary to the northeast, Croatia to the south and southeast, and it covers 20,273 square kilometers and has a population of 2.06 million. It is a republic and a member of the United Nations, European Union. The capital and largest city is Ljubljana, additionally, the Dinaric Alps and the Pannonian Plain meet on the territory of Slovenia. The country, marked by a significant biological diversity, is one of the most water-rich in Europe, with a river network, a rich aquifer system. Over half of the territory is covered by forest, the human settlement of Slovenia is dispersed and uneven. Slovenia has historically been the crossroads of South Slavic, Germanic, Romance, although the population is not homogeneous, the majority is Slovene. South Slavic language Slovene is the language throughout the country. Slovenia is a largely secularized country, but its culture and identity have been influenced by Catholicism as well as Lutheranism. The economy of Slovenia is small, open, and export-oriented and has strongly influenced by international conditions. It has been hurt by the Eurozone crisis, started in the late 2000s. The main economic field is services, followed by industry and construction, Historically, the current territory of Slovenia was part of many different state formations, including the Roman Empire and the Holy Roman Empire, followed by the Habsburg Monarchy. In October 1918, the Slovenes exercised self-determination for the first time by co-founding the State of Slovenes, Croats, in December 1918, they merged with the Kingdom of Serbia into the Kingdom of Serbs, Croats and Slovenes. During World War II, Slovenia was occupied and annexed by Germany, Italy, and Hungary, with a tiny area transferred to the Independent State of Croatia, in June 1991, after the introduction of multi-party representative democracy, Slovenia split from Yugoslavia and became an independent country. Present-day Slovenia has been inhabited since prehistoric times, and there is evidence of habitation from around 250,000 years ago. A pierced cave bear bone, dating from 43100 ±700 BP, in the 1920s and 1930s, artifacts belonging to the Cro-Magnon such as pierced bones, bone points, and needle were found by archaeologist Srečko Brodar in Potok Cave. It shows that wooden wheels appeared almost simultaneously in Mesopotamia and Europe, in the transition period between the Bronze age to the Iron age, the Urnfield culture flourished. Archaeological remains dating from the Hallstatt period have been found, particularly in southeastern Slovenia, among them a number of situlas in Novo Mesto, in the Iron Age, present-day Slovenia was inhabited by Illyrian and Celtic tribes until the 1st century BC
5.
Taiwan
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Taiwan, officially the Republic of China, is a state in East Asia. Neighbours include China to the west, Japan to the northeast, Taiwan is the most populous state that is not a member of the United Nations, and the one with the largest economy. The island of Taiwan, also known as Formosa, was inhabited by Taiwanese aborigines before the 17th century. After a brief rule by the Kingdom of Tungning, the island was annexed by the Qing dynasty, the Qing ceded Taiwan to Japan in 1895 after the Sino-Japanese War. While Taiwan was under Japanese rule, the Republic of China was established on the mainland in 1912 after the fall of the Qing dynasty, following the Japanese surrender to the Allies in 1945, the ROC took control of Taiwan. However, the resumption of the Chinese Civil War led to the ROCs loss of the mainland to the Communists, and the flight of the ROC government to Taiwan in 1949. As a founding member of the United Nations, the ROC continued to represent China at the United Nations until 1971, in the early 1960s, Taiwan entered a period of rapid economic growth and industrialization, creating a stable industrial economy. In the 1980s and early 1990s, it changed from a one-party military dictatorship dominated by the Kuomintang to a multi-party democracy with universal suffrage, Taiwan is the 22nd-largest economy in the world, and its high-tech industry plays a key role in the global economy. It is ranked highly in terms of freedom of the press, health care, public education, economic freedom, the PRC has consistently claimed sovereignty over Taiwan and asserted the ROC is no longer in legitimate existence. Under its One-China Policy the PRC refused diplomatic relations with any country that recognizes the ROC, the PRC has threatened the use of military force in response to any formal declaration of independence by Taiwan or if PRC leaders decide that peaceful unification is no longer possible. There are various names for the island of Taiwan in use today, the former name Formosa dates from 1542, when Portuguese sailors sighted the main island of Taiwan and named it Ilha Formosa, which means beautiful island. The name Formosa eventually replaced all others in European literature and was in use in English in the early 20th century. This name was adopted into the Chinese vernacular as the name of the sandbar. The modern word Taiwan is derived from this usage, which is seen in forms in Chinese historical records. Use of the current Chinese name was formalized as early as 1684 with the establishment of Taiwan Prefecture, through its rapid development, the entire Formosan mainland eventually became known as Taiwan. The official name of the state is the Republic of China and it was a member of the United Nations representing China until 1971, when it lost its seat to the Peoples Republic of China. Over subsequent decades, the Republic of China has become known as Taiwan. In some contexts, especially ones from the ROC government
6.
Venezuela
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Venezuela, officially the Bolivarian Republic of Venezuela, is a federal republic located on the northern coast of South America. It is bordered by Colombia on the west, Brazil on the south, Guyana on the east, Venezuela covers 916,445 km2 and has an estimated population of 31775371. The territory now known as Venezuela was colonized by Spain in 1522 amid resistance from indigenous peoples and it gained full independence as a separate country in 1830. During the 19th century, Venezuela suffered political turmoil and autocracy, since 1958, the country has had a series of democratic governments. This new constitution changed the name of the country to República Bolivariana de Venezuela. Venezuela is a presidential republic consisting of 23 states, the Capital District. Venezuela also claims all Guyanese territory west of the Essequibo River, oil was discovered in the early 20th century, and Venezuela has the worlds largest known oil reserves and has been one of the worlds leading exporters of oil. Previously an underdeveloped exporter of commodities such as coffee and cocoa, oil quickly came to dominate exports. The recovery of oil prices in the early 2000s gave Venezuela oil funds not seen since the 1980s, the Venezuelan government then established populist policies that initially boosted the Venezuelan economy and increased social spending, significantly reducing economic inequality and poverty. However, such policies later became controversial since they destabilized the economy, resulting in hyperinflation, an economic depression. According to the most popular and accepted version, in 1499, the stilt houses in the area of Lake Maracaibo reminded the navigator, Amerigo Vespucci, of the city of Venice, so he named the region Veneziola Piccola Venezia. The name acquired its current spelling as a result of Spanish influence, where the suffix -uela is used as a term, thus. The German language 16th century-term for the area, Klein-Venedig, also means little Venice, however, Martín Fernández de Enciso, a member of the Vespucci and Ojeda crew, gave a different account. In his work Summa de geografía, he states that they found people who called themselves the Veneciuela. Thus, the name Venezuela may have evolved from the native word and it is not known how many people lived in Venezuela before the Spanish conquest, it has been estimated at around one million. In addition to indigenous peoples known today, the population included historic groups such as the Kalina, Auaké, Caquetio, Mariche, the Timoto-Cuica culture was the most complex society in Pre-Columbian Venezuela, with pre-planned permanent villages, surrounded by irrigated, terraced fields. They also stored water in tanks and their houses were made primarily of stone and wood with thatched roofs. They were peaceful, for the most part, and depended on growing crops, regional crops included potatoes and ullucos
7.
Lebanese Civil War
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The Lebanese Civil War was a multifaceted civil war in Lebanon, lasting from 1975 to 1990 and resulting in an estimated 120,000 fatalities. As of 2012, approximately 76,000 people remain displaced within Lebanon, there was also an exodus of almost one million people from Lebanon as a result of the war. The government of Lebanon had been run under a significant influence of the elites among the Maronite Christians, however, the country had a large Muslim population and many pan-Arabist and left-wing groups opposed the pro-western government. Fighting between Maronite and Palestinian forces began in 1975, then Leftist, pan-Arabist and Muslim Lebanese groups formed an alliance with the Palestinians, during the course of the fighting, alliances shifted rapidly and unpredictably. Furthermore, foreign powers, such as Israel and Syria, became involved in the war, Peace keeping forces, such as the Multinational Force in Lebanon & UNIFIL, were also stationed in Lebanon. The 1989 Taif Agreement marked the beginning of the end of the fighting, in January 1989, a committee appointed by the Arab League began to formulate solutions to the conflict. In March 1991, parliament passed an amnesty law that all political crimes prior to its enactment. In May 1991, the militias were dissolved, with the exception of Hezbollah, religious tensions between Sunnis and Shias remained after the war. An 1860 civil war between Druze and Maronites erupted in the Ottoman Mutasarrifate of Mount Lebanon, which had been divided between them in 1842 and it resulted in the massacre of about 10,000 Christians and at least 6,000 Druzes. The 1860 war was considered by the Druze as a military victory, World War I was hard for the Lebanese. While the rest of the world was occupied with the World War, with the defeat and dissolution of the Ottoman Empire, Turkish rule ended. France took control of the area under the French Mandate for Syria, the French created the state of Greater Lebanon as a safe haven for the Maronites, but included a large Muslim population within the borders. In 1926, Lebanon was declared a republic, and a constitution was adopted, however, the constitution was suspended in 1932. Various factions sought unity with Syria, or independence from the French, in 1934, the countrys first census was conducted. In 1936, the Maronite Phalange party was founded by Pierre Gemayel, World War II and the 1940s brought great change to Lebanon and the Middle East. Lebanon was promised independence and on 22 November 1943, during World War II, Free French troops, who had invaded Lebanon in 1941 to rid Beirut of the Vichy French forces, left the country in 1946. The Maronites assumed power over the country and economy, a parliament was created, in which both Muslims and Christians each had a set quota of seats. Accordingly, the President was to be a Maronite, the Prime Minister a Sunni Muslim, the United Nations Partition Plan for Palestine in late 1947 led to civil war in Palestine, the end of Mandatory Palestine, and the Israeli Declaration of Independence on 14 May 1948
8.
Colombian conflict
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Two of the most important forces that have contributed to the Colombian conflict are multinational companies and the United States. The reasons for fighting vary from group to group, the FARC and other guerrilla movements claim to be fighting for the rights of the poor in Colombia to protect them from government violence and to provide social justice through communism. The Colombian government claims to be fighting for order and stability, the paramilitary groups claim to be reacting to perceived threats by guerrilla movements. Both guerrilla and paramilitary groups have been accused of engaging in drug trafficking, all of the parties engaged in the conflict have been criticized for numerous human rights violations. 16. 9% of the population in Colombia has been a victim of the war. 2.3 million children have been displaced from their homes, in total, one in three of the 7.6 million registered victims of the conflict are children, and since 1985,8,000 minors have disappeared. On 23 June 2016, the Colombian government and the FARC rebels signed a ceasefire deal. However, on October 2,2016, a majority of the Colombian public rejected the deal, in October 2016, Juan Manuel Santos was awarded the Nobel Peace Prize for his efforts to bring the countrys more than 50-year-long civil war to an end. The Colombian government and the FARC on November 24 signed a peace deal. The House of Representatives unanimously approved the plan on November 30, the armed conflict in Colombia emerged due to a combination of economic, political and social factors in the country 60 years ago. In the early period, guerrilla groups like the FARC, the ELN and others focused on slogan of greater equality through communism, in 1985, the FARC co-created the left-wing Patriotic Union political party. Eventually, the UP distanced itself from insurgent groups, initially, a group of Americans began to smuggle marijuana during the decades of the sixties and seventies. Later, the American Mafia began to establish drug trafficking in Colombia in cooperation with local marijuana producers, cocaine manufactured in Colombia were historically mostly consumed in the US as well as Europe. Organized crime in Colombia grew increasingly powerful in the 1970s and 80s with the introduction of drug trafficking to the United States from Colombia. These funds helped finance paramilitaries and guerrillas, allowing organizations to buy weapons which were then sometimes used to attack military. During the presidency of Álvaro Uribe, the government applied more pressure on the FARC. After the offensive, many security indicators improved, as part of a controversial peace process, the AUC as a formal organization had ceased to function. Colombia achieved a great decrease in production, leading White House drug czar R. Gil Kerlikowske to announce that Colombia is no longer the worlds biggest producer of cocaine
9.
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
10.
Action (firearms)
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In firearms terminology, an action is the mechanism that handles the ammunition or the method by which that mechanism works. Breech-loading weapons have actions, actions are not present on muzzleloaders. The mechanism that fires a muzzle-loader is called the lock, actions can be categorized in several ways, including single action versus double action, break action versus bolt action, and others. The term action can also short, long, and magnum if it is in reference to the length of the rifle’s receiver. The short action rifle usually can accommodate a cartridge length of 2.8 in or smaller, the long action rifle can accommodate a cartridge of 3.34 in, and the magnum action rifle can accommodate cartridges of 3.6 in, or longer in length. Manual operation is a term describing any type of firearm action that is loaded one shot at a time by the user rather than automatically. For example, break action is a form of operation using a simple hinge mechanism that is manually unlatched by the operator. These are actions wherein the breechblock lowers or drops into the receiver to open the breech, there are two principal types of dropping block, the tilting block and the falling block. In a tilting or pivoting block action, the breechblock is hinged on a pin mounted at the rear, when the lever is operated, the block tilts down and forward, exposing the chamber. The best-known pivoting block designs are the Peabody, the Peabody–Martini, the original Peabody rifles, manufactured by the Providence Tool Company, used a manually cocked side-hammer. The 1871 Martini–Henry which replaced the trapdoor Snider–Enfield was the standard British Army rifle of the later Victorian era, charles H. Ballards self-cocking tilting-block action was produced by the Marlin Firearms Company from 1875, and earned a superlative reputation among long-range Creedmoor target shooters. Surviving Marlin Ballards are today highly prized by collectors, especially those mounted in the elaborate Swiss-style Schützen stocks of the day. A falling-block action is a firearm action in which a solid metal breechblock slides vertically in grooves cut into the breech of the weapon. Examples of firearms using the falling block action are the Sharps rifle, in a rolling block action the breechblock takes the form of a part-cylinder, with a pivot pin through its axis. The operator rotates or rolls the block to open and close the breech, it is a simple, rugged, a break action is a type of firearm where the barrel are hinged and can be broken open to expose the breech. The earliest metallic-cartridge breechloaders designed for military issue began as conversions of muzzle-loading rifle-muskets. The upper rear portion of the barrel was filed or milled away, an internal angled firing pin allowed the re-use of the rifles existing side-hammer. The Allin action made by Springfield Arsenal in the US hinged forward, france countered in 1866 with its superior Chassepot rifle, also a paper-cartridge bolt action
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