Guerrilla warfare is a form of irregular warfare in which a small group of combatants, such as paramilitary personnel, armed civilians, or irregulars. Guerrilla groups are a type of violent non-state actor; the Spanish word "guerrilla" is the diminutive form of "guerra". The term became popular during the early-19th century Peninsular War, when the Spanish and Portuguese people rose against the Napoleonic troops and fought against a superior army using the guerrilla strategy. In correct Spanish usage, a person, a member of a "guerrilla" unit is a "guerrillero" if male, or a "guerrillera" if female; the term "guerrilla" was used in English as early as 1809 to refer to the fighters, to denote a group or band of such fighters. However, in most languages guerrilla still denotes the specific style of warfare; the use of the diminutive evokes the differences in number and scope between the guerrilla army and the formal, professional army of the state. Guerrilla warfare is a type of asymmetric warfare: competition between opponents of unequal strength.
It is a type of irregular warfare: that is, it aims not to defeat an enemy, but to win popular support and political influence, to the enemy's cost. Accordingly, guerrilla strategy aims to magnify the impact of a small, mobile force on a larger, more-cumbersome one. If successful, guerrillas weaken their enemy by attrition forcing them to withdraw. Tactically, guerrillas avoid confrontation with large units and formations of enemy troops, but seek and attack small groups of enemy personnel and resources to deplete the opposing force while minimizing their own losses; the guerrilla prizes mobility and surprise, organizing in small units and taking advantage of terrain, difficult for larger units to use. For example, Mao Zedong summarized basic guerrilla tactics at the beginning of the Chinese "Second Revolutionary Civil War" as:"The enemy advances, we retreat. At least one author credits the ancient Chinese work The Art of War with inspiring Mao's tactics. In the 20th century, other communist leaders, including North Vietnamese Ho Chi Minh used and developed guerrilla warfare tactics, which provided a model for their use elsewhere, leading to the Cuban "foco" theory and the anti-Soviet Mujahadeen in Afghanistan.
In addition to traditional military methods, guerrilla groups may rely on destroying infrastructure, using improvised explosive devices, for example. They also rely on logistical and political support from the local population and foreign backers, are embedded within it, many guerrilla groups are adept at public persuasion through propaganda. Many guerrilla movements today rely on children as combatants, porters, informants, in other roles, which has drawn international condemnation. There is no accepted definition of "terrorism", the term is used as a political tactic by belligerents to denounce opponents whose status as terrorists is disputed. Contrary to some terrorist groups, guerrillas work in open positions as armed units, try to hold and seize land, do not refrain from fighting enemy military force in battle and apply pressure to control or dominate territory and population. While the primary concern of guerrillas is the enemy's active military units, terrorists are concerned with non-military agents and target civilians.
Guerrilla forces principally fight in accordance with the law of war. In this sense, they respect the rights of innocent civilians by refraining from targeting them. According to the Ankara Center for Crisis and Policy Studies, terrorists do not limit their actions and terrorise civilians by putting fear in people's hearts and kill innocent foreigners in the country. Irregular warfare, based on elements characteristic of modern guerrilla warfare, has existed throughout the battles of many ancient civilizations; the growth of guerrilla warfare in the 20th century was inspired in part by theoretical works on guerrilla warfare, starting with the Manual de Guerra de Guerrillas by Matías Ramón Mella written in the 19th century and, more Mao Zedong's On Guerrilla Warfare, Che Guevara's Guerrilla Warfare, Lenin's text of the same name, all written after the successful revolutions carried by them in China and Russia, respectively. Those texts characterized the tactic of guerrilla warfare as, according to Che Guevara's text, being"used by the side, supported by a majority but which possesses a much smaller number of arms for use in defense against oppression".
The Chinese general and strategist Sun Tzu, in his The Art of War or 600 BC to 501 BC, was the earliest to propose the use of guerrilla warfare. This directly inspired the development of modern guerrilla warfare. Guerrilla tactics were employed by prehistoric tribal warriors against enemy tribes. Evidence of conventional warfare, on the other hand, did not emerge until 3100 BC in Egypt and Mesopotamia. Since the Enlightenment, ideologies such as nationalism, liberalism and religious fundamentalism have played an important role in shaping insurgencies and guerrilla warfare; the Moroccan national hero Mohamed ben Abdelkrim el-Khattabi, along with his father, unified the Moroccan
Space warfare is combat that takes place in outer space. The scope of space warfare therefore includes ground-to-space warfare, such as attacking satellites from the Earth, as well as space-to-space warfare, such as satellites attacking satellites; as of 2019 no actual warfare has taken place in space, though a number of tests and demonstrations have been performed. International treaties are in place that regulate conflicts in space and limit the installation of space weapon systems nuclear weapons. From 1985 to 2002 there was a United States Space Command, which in 2002 merged with the United States Strategic Command, leaving Air Force Space Command as the primary American military space force; the Russian Space Force, established on August 10, 1992, which became an independent section of the Russian military on June 1, 2001, was replaced by the Russian Aerospace Defence Forces starting December 1, 2011, but was reestablished as a component of the Russian Aerospace Forces on August 1, 2015.
In 2019 India conducted a test of the ASAT missile making it the fourth country with that capability. Early efforts to conduct space warfare were directed at space-to-space warfare, as ground-to-space systems were considered to be too slow and too isolated by Earth's atmosphere and gravity to be effective at the time; the history of active space warfare development goes back to the 1960s when the Soviet Union began the Almaz project, a project designed to give them the ability to do on-orbit inspections of satellites and destroy them if needed. Similar planning in the United States took the form of the Blue Gemini project, which consisted of modified Gemini capsules that would be able to deploy weapons and perform surveillance. One early test of electronic space warfare, the so-called Starfish Prime test, took place in 1962, when the United States exploded a ground-launched nuclear weapon in space to test the effects of an electromagnetic pulse; the result was a deactivation of both American and Soviet.
The deleterious and unfocused effects of the EMP test led to the banning of nuclear weapons in space in the Outer Space Treaty of 1967. In the early 1960s the U. S. military produced a film called National Security which depicted space warfare. Through the 1970s, the Soviet Union continued their project and test-fired a cannon to test space station defense; this was considered too dangerous to do with a crew on board, however, so the test was conducted after the crew had returned to Earth. Space warfare influenced the final design of the United States Space Shuttle; the distinctive delta wing shape was needed if the shuttle were to launch a military payload towards the Soviet Union and perform an immediate de-orbit after one rotation to avoid being shot down. Both the Soviets and the United States developed anti-satellite weaponry designed to shoot down satellites. While early efforts paralleled other space-to-space warfare concepts, the United States was able in the 1980s to develop ground-to-space laser anti-satellite weapons.
None of these systems are known to be active today. In 1985 a USAF pilot in an F-15 shot down the P78-1, an American research satellite, in a 345-mile orbit; the People's Republic of China tested a ballistic missile-launched anti-satellite weapon on January 11, 2007. This resulted in harsh criticism from the United States of America and Japan; the U. S. developed an interceptor missile, the SM-3, testing it by hitting ballistic test targets while they were in space. On February 21, 2008, the U. S. used a SM-3 missile to destroy a spy satellite, USA-193, while it was 247 kilometers above the Pacific Ocean. Japan fields the U. S.-made SM-3 missile, there have been plans to base the land-based version in Romania and Vietnam. In March, 2019, India shot down a low orbit satellite making its way to the list of space warfare nations. In the late 1970s and through the 1980s the Soviet Union and the United States theorized, designed and in some cases tested a variety of weaponry designed for warfare in outer space.
Space warfare was seen as an extension of nuclear warfare, so many theoretical systems were based around the destruction or defense of ground and sea-based missiles. Space-based missiles were not attempted due to the Outer Space Treaty, which banned the use, testing or storage of nuclear weapons outside the Earth's atmosphere; when the U. S. gained "interest in utilizing space-based lasers for ballistic missile defense", two facts emerged. One being that the ballistic missiles are fragile and two, chemical lasers project missile killing energy; this meant. Systems proposed ranged from measures as simple as ground and space-based anti-missiles to railguns, space based lasers, orbital mines and similar weaponry. Deployment of these systems was considered in the mid-1980s under the banner of the Strategic Defense Initiative announced by Ronald Reagan in 1983, using the term "evil empire" to describe the Soviets. If the Cold War had continued, many of these systems could have seen deployment: the United States developed working railguns, a laser that could destroy missiles at range, though the power requirements and firing cycles of both were impractical.
Weapons like the space-based laser was rejected, not just by the government, but by Universities, moral thinkers, religious people because it would have increased the waging of the arms race
Area denial weapon
An area denial weapon or Anti Access/Area Denial weapon system is a device or a strategy used to prevent an adversary from occupying or traversing an area of land, sea or air. The specific method used does not have to be effective in preventing passage as long as it is sufficient to restrict, slow down, or endanger the opponent; some area denial weapons pose long-lasting risks to anyone entering the area to civilians, thus are controversial. In medieval warfare and sturdy stakes were buried at the bottom of long lines of ditches, pointed end up diagonally, in order to prevent cavalry charges in a given area. If the stakes were spotted, soldiers would be forced to dismount and give up their advantage as cavalry as well as becoming easier targets; the correct layout of these extensive lines of ditches and the quality control of stake size and placement was part of the craft of war. A more modern version, allowing quicker dispersal and providing the advantage of being hidden more are caltrops, though items bearing close similarity had been in use for most of antiquity.
Many variants were used, such as boards with metal hooks, as described during battles of Julius Caesar. Passive fortification—ditches and obstacles such as dragon's teeth and Czech hedgehogs—were used as anti-tank measures during World War II. Simple rows or clusters of sharpened sticks, the use of small caltrops have been a feature of anti-infantry warfare since antiquity. However, due to the difficulty of mass-producing them in the pre-modern age, they were used except in the defense of limited areas or chokepoints during sieges, where they were used to help seal breaches. Increasing ease of production still did not prevent these methods from falling out of favor from the late Middle Ages onward. Caltrops are still sometimes used in modern conflicts, such as during the Korean War, where Chinese troops wearing only light shoes, were vulnerable. In modern times, special caltrops are sometimes used against wheeled vehicles with pneumatic tires; some South American urban guerrillas such as the Tupamaros and Montoneros, who called them "miguelitos," have used caltrops to avoid pursuit after ambushes.
The most common planted by hand or dispersed by artillery. Some modern prototypes experiment with automatic guns or artillery-delivered ammunitions that are fired only after remote sensing detects enemies. Booby traps or improvised explosive devices in sufficient concentration qualify as area denial weapons, though they are much easier to clear and pose less long-term danger. During an armed conflict there are several methods of countering land mines; these include using armoured vehicles to negate the effects of anti-personnel land mines. Land mines can be cleared either by hand, or by using specialised equipment such as tanks equipped with flails. Explosives can be used to clear mine fields, either by artillery bombardment, or with specialised charges such as Bangalore torpedoes, the Antipersonnel Obstacle Breaching System and the Python Minefield Breaching System. 156 states are parties to the Ottawa Treaty under which they have agreed not to use, produce or transfer anti-personnel mines. Anti-ship missiles are a modern method of stopping a potential adversary from attacking by sea.
China, North Korea and Iran all have developed or imported such weapons in an effort to develop a modern anti-access or A2/AD strategy to counter modern United States weaponry. In response to China’s pursuit of such A2/AD capabilities, the United States has developed the AirSea Battle doctrine. Amitai Etzioni of the Institute for Communitarian Policy Studies has suggested that AirSea Battle is an escalatory military posture that entails restructuring United States military forces and ordering additional weapons systems, that AirSea Battle could “lead to an arms race with China, which could culminate in a nuclear war.”Other methods of area denial at a strategic level include aircraft carriers, surface-to-air missiles, ballistic missiles, cruise missiles, electronic warfare and interceptor aircraft. Various CBRNE weapons can be used for area denial, as long. Fallout from nuclear weapons might be used in such a role. While never employed in this form, its use had been suggested by Douglas MacArthur during the Korean War.
Anthrax spores can contaminate the ground for long periods of time, thus providing a form of area denial. However, the short-term effects are to be low - the psychological effects on an opponent would be more significant; the massive use of defoliants such as Agent Orange can be used as an interdiction measure because they leave areas empty of any form of vegetation cover. In the desert-like terrain that ensues, it is impossible for the enemy to travel without being seen, there is little cover in case of an attack from the air. Many chemical weapons produce toxic effects on any personnel in an affected area. However, this has no tactical value, as the effects of indirect exposure do not develop fast or enough - though again, the psychological effect upon an enemy aware of the chemical usage may be considerable. There are however some chemical agents that are by design non-degrading, such as the nerve agent VX. Sulfur mustard was extensively used by both German and allied forces on the west front in World War I as an effective area-denial weapon through contaminating large land stripes by extensive shelling with HD/Gelbkreuz ordnance
Armoured warfare, mechanised warfare or tank warfare is the use of armoured fighting vehicles in modern warfare. It is a major component of modern methods of war; the premise of armoured warfare rests on the ability of troops to penetrate conventional defensive lines through use of manoeuvre by armoured units. Much of the application of armoured warfare depends on the use of tanks and related vehicles used by other supporting arms such as infantry fighting vehicles, self-propelled artillery, other combat vehicles, as well as mounted combat engineers and other support units; the doctrine of armoured warfare was developed to break the static nature of World War I trench warfare on the Western Front, return to the 19th century school of thought that advocated manoeuvre and "decisive battle" outcomes in military strategy. Modern armoured warfare began during the First World War with the need to break the tactical and strategic stalemates forced on commanders on the Western Front by the effectiveness of entrenched defensive infantry armed with machine guns—known as trench warfare.
Under these conditions, any sort of advance was very slow and caused massive casualties. The development of the tank was motivated by the need to return manoeuvre to warfare, the only practical way to do so was to provide caterpillar traction to guns allowing them to overcome trenches while at the same time offering them armour protection against small arms fire as they were moving. Tanks were first developed in Britain and France in 1915, as a way of navigating the barbed wire and other obstacles of no-man's land while remaining protected from machine-gun fire. British Mark I tanks first went to action at the Somme, on 15 September 1916, but did not manage to break the deadlock of trench warfare; the first French employment of tanks, on 16 April 1917, using the Schneider CA, was a failure. In the Battle of Cambrai British tanks were more successful, broke a German trenchline system, the Hindenburg Line. Despite the unpromising beginnings, the military and political leadership in both Britain and France during 1917 backed large investments into armoured vehicle production.
This led to a sharp increase in the number of available tanks for 1918. The German Empire to the contrary, produced only a few tanks, late in the war. Twenty German A7V tanks were produced during the entire conflict, compared to over 4,400 French and over 2,500 British tanks of various kinds. Nonetheless, World War I saw the first tank-versus-tank battle, during the Second Battle of Villers-Bretonneux in April 1918, when a group of three German A7V tanks engaged a group of three British Mark IV tanks they accidentally met. After the final German Spring Offensives of 1918, Entente tanks were used in mass at the Battle of Soissons and Battle of Amiens, which ended the stalemate imposed by trench warfare on the Western Front, thus ended the war. Tactically, the deployment of armour during the war was typified by a strong emphasis on direct infantry support; the tank's main tasks were seen as crushing barbed wire and destroying machine-gun nests, facilitating the advance of foot soldiers. Theoretical debate focused on the question whether a "swarm" of light tanks should be used for this or a limited number of potent heavy vehicles.
Though in the Battle of Cambrai a large concentration of British heavy tanks effected a breakthrough, it was not exploited by armour. The manoeuvrability of the tank should at least in theory regain armies the ability to flank enemy lines. In practice, tank warfare during most of World War I was hampered by the technical immaturity of the new weapon system causing mechanical failure, limited numbers, general underutilisation, a low speed and a short range. Strategic use of tanks was slow to develop during and after World War I due to these technical limitations but due to the prestige role traditionally accorded to horse-mounted cavalry. An exception, on paper, was the Plan 1919 of Colonel John Fuller, who envisaged using the expected vast increase in armour production during 1919 to execute deep strategic penetrations by mechanised forces consisting of tanks and infantry carried by lorries, supported by aeroplanes, to paralyse the enemy command structure. Following the First World War, the technical and doctrinal aspects of armoured warfare became more sophisticated and diverged into multiple schools of doctrinal thought.
During the 1920s, only few tanks were produced. There were however, important technical developments. Various British and French commanders who had contributed to the origin of the tank, such as Jean Baptiste Eugène Estienne, B. H. Liddell Hart and J. F. C. Fuller, theorised about a possible future use of independent armoured forces, containing a large concentration of tanks, to execute deep strategic penetrations. Liddell Hart wrote many books about the subject propagating Fuller's theories; such doctrines were faced with the reality that during the 1920s the armoured vehicles, as early road transport in general, were unreliable, could not be used in sustained operations. Mainstream thought on the subject was more conservative and tried to integrate armoured vehicles into the existing infantry and cavalry organisation and tactics. Technical development focussed on the improvement of the suspension system and engine, to create vehicles that were faster, more reliable and had a better range than their WW I predecessors.
To save weight, such designs had thin armour plating and this inspired fitting small-calibre high-velocity guns in turrets, giving tanks a good antitank capacity. Both France and Britain built specialised infantry tanks, more armoured to provide infantry
Air combat manoeuvring
Air combat manoeuvring is the tactical art of moving, turning and/or situating one's fighter aircraft in order to attain a position from which an attack can be made on another aircraft. Air combat manoeuvres rely on offensive and defensive basic fighter manoeuvring to gain an advantage over an aerial opponent. Military aviation appeared in World War I when aircraft were used to spot enemy troop concentrations, field gun positions and movements. Early aerial combat consisted of aviators shooting at one another with hand held weapons; the first recorded aircraft to be shot down by another aircraft, which occurred on October 5, 1914, was a German Aviatik. The pilot, Feldwebel Wilhelm Schlichting, was shot with a carbine wielded by observer Louis Quenault, riding in a Voisin Type 3 piloted by French Sergeant Joseph Frantz; the need to stop reconnaissance, being conducted by enemy aircraft led to the development of fighter planes, a class of aircraft designed to destroy other aircraft. Fixed, forward-firing guns were found to be the most effective armament a majority of World War I era fighter planes, but it was nearly impossible to fire them through the spinning propeller of one's own aircraft without destroying one's own plane.
Roland Garros, working with Morane Saulnier Aéroplanes, was the first to solve this problem by attaching steel deflector wedges to the propeller. He achieved three was shot down by ground fire and landed behind German lines. Anthony Fokker inspected the plane's wreckage and learned to improved the design by connecting the firing mechanism of the gun to the timing of the engine, thus allowing the gun to fire through the propeller without making contact with the propeller; as technology advanced and young aviators began defining the realm of air-to-air combat, such as Max Immelmann, Oswald Boelcke, Lanoe Hawker. One of the greatest of these "ace pilots" of World War I, Manfred von Richthofen, wrote in his book The Red Fighter Pilot, "The great thing in air fighting is that the decisive factor does not lie in trick flying but in the personal ability and energy of the aviator. A flying man may be able to loop and do all the stunts imaginable and yet he may not succeed in shooting down a single enemy."Pilots soon learned to achieve a firing position by manoeuvring themselves behind an enemy aircraft.
This type of combat became known as dogfighting. Oswald Boelcke, a German fighter ace during World War I, was the first to publish the basic rules for aerial combat manoeuvring in 1916, known as the Dicta Boelcke, he advised pilots to attack from the direction of the sun, or to fly at a higher altitude than the opponent. Most of these rules are still as valuable today. Today's air combat is much more complicated than that of older times, as air-to-air missiles and automatic cannons capable of high rates of fire are used on all modern fighter aircraft. New, additional types of manoeuvres have emerged, intending to break radar lock by minimizing the Doppler signature of one's own aircraft, or to exhaust the kinetic energy of an incoming missile. However, close range fighting with infrared guided missiles and aircraft cannons still obeys the same general rules laid down in the skies over Europe in the early 20th century; the master rule is still the same: do not let your opponent get onto your six, while attempting to get on his.
Close-range combat tactics vary according to the type of aircraft being used and the number of aircraft involved. There are five things. In Southeast Asia, over 85 percent of all kills are attributed to the attacker spotting and shooting the defender without being seen. Structural limitations of the attacking and defending fighters must be taken into account, such as thrust-to-weight ratio, wing loading, the "corner speed". Variable limitations must be considered, such as turn radius, turn rate and the specific energy of the aircraft. Position of aircraft must be assessed, including direction, angle off tail, closing speed; the pilot must be aware of his wingman’s position and maintain good communication. A pilot in combat attempts to conserve his aircraft’s energy through timed and executed manoeuvres. By using such manoeuvres, a pilot will make trade offs between the fighter’s potential energy and kinetic energy, to maintain the energy-to-weight ratio of the aircraft, or the "specific energy".
A manoeuvre such as the "low yo-yo" trades altitude for airspeed to close on an enemy and to decrease turn radius. The opposite manoeuvre, a "high yo-yo", trades speed for height storing energy in "the altitude bank", which allows a fast moving attacker to slow his closing speed. An attacker is confronted with three possible ways to pursue an enemy, all of which are vital during chase. "Lag pursuit" happens in a turn when the nose of the attacker’s aircraft points behind an enemy’s tail. Lag pursuit allows an attacker to increase or maintain range without oversho
Psychological warfare, or the basic aspects of modern psychological operations, have been known by many other names or terms, including MISO, Psy Ops, political warfare, "Hearts and Minds", propaganda. The term is used "to denote any action, practiced by psychological methods with the aim of evoking a planned psychological reaction in other people". Various techniques are used, are aimed at influencing a target audience's value system, belief system, motives, reasoning, or behavior, it is used to induce confessions or reinforce attitudes and behaviors favorable to the originator's objectives, are sometimes combined with black operations or false flag tactics. It is used to destroy the morale of enemies through tactics that aim to depress troops' psychological states. Target audiences can be governments, organizations and individuals, is not just limited to soldiers. Civilians of foreign territories can be targeted by technology and media so as to cause an effect in the government of their country.
In Propaganda: The Formation of Men's Attitudes, Jacques Ellul discusses psychological warfare as a common peace policy practice between nations as a form of indirect aggression. This type of propaganda drains the public opinion of an opposing regime by stripping away its power on public opinion; this form of aggression is hard to defend against because no international court of justice is capable of protecting against psychological aggression since it cannot be adjudicated. "Here the propagandists is dealing with a foreign adversary whose morale he seeks to destroy by psychological means so that the opponent begins to doubt the validity of his beliefs and actions." Since prehistoric times and chiefs have recognised the importance of weakening morale of opponents. In the Battle of Pelusium between the Persian Empire and ancient Egypt, the Persian forces used cats and other animals as a psychological tactic against the Egyptians, who avoided harming cats due to religious belief and spells. Currying favour with supporters was the other side of psychological warfare, an early practitioner of such this was Alexander the Great, who conquered large parts of Europe and the Middle East and held on to his territorial gains by co-opting local elites into the Greek administration and culture.
Alexander left some of his men behind in each conquered city to introduce Greek culture and oppress dissident views. His soldiers were paid dowries to marry locals in an effort to encourage assimilation. Genghis Khan, leader of the Mongolian Empire in the 13th century AD employed less subtle techniques. Defeating the will of the enemy before having to attack and reaching a consented settlement was preferable to facing his wrath; the Mongol generals demanded submission to the Khan, threatened the captured villages with complete destruction if they refused to surrender. If they had to fight to take the settlement, the Mongol generals fulfilled their threats and massacred the survivors. Tales of the encroaching horde spread to the next villages and created an aura of insecurity that undermined the possibility of future resistance; the Khan employed tactics that made his numbers seem greater than they were. During night operations he ordered each soldier to light three torches at dusk to give the illusion of an overwhelming army and deceive and intimidate enemy scouts.
He sometimes had objects tied to the tails of his horses, so that riding on open and dry fields raised a cloud of dust that gave the enemy the impression of great numbers. His soldiers used arrows specially notched to whistle as they flew through the air, creating a terrifying noise. Another tactic favoured by the Mongols was catapulting severed human heads over city walls to frighten the inhabitants and spread disease in the besieged city's closed confines; this was used by the Turko-Mongol chieftain. The Muslim caliph Omar, in his battles against the Byzantine Empire, sent small reinforcements in the form of a continuous stream, giving the impression that a large force would accumulate if not swiftly dealt with. During the early Qin dynasty and late Eastern Zhou dynasty in 1st Century AD China, the Empty Fort Strategy was used to trick the enemy into believing that an empty location is an ambush, in order to prevent them from attacking it using reverse psychology; this tactic relied on luck should the enemy believe that the location is a threat to them.
In the 6th century BCE Greek Bias of Priene resisted the Lydian king Alyattes by fattening up a pair of mules and driving them out of the besieged city. When Alyattes' envoy was sent to Priene, Bias had piles of sand covered with corn to give the impression of plentiful resources; this ruse appears to have been well known in medieval Europe: defenders in castles or towns under siege would throw food from the walls to show besiegers that provisions were plentiful. A famous example occurs in the 8th-century legend of Lady Carcas, who persuaded the Franks to abandon a five-year siege by this means and gave her name to Carcassonne as a result; the start of modern psychological operations in war is dated to the World War I. By that point, Western societies were educated and urbanized, mass media was available in the form of large circulation newspapers and posters, it was possible to transmit propaganda to the enemy via the use of airborne leaflets or through explosive delivery systems like modified artillery or mortar rounds.
At the start of the war, the belligerents the British and Germans, began distributing propaganda, both domestically and on the Western front. The British had several advantages that allowed them to succeed in the battle for wor