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Knowledge - 84 Items
Battle of Britain ( 17123 views )
The Battle of Britain (German: Luftschlacht um England, literally "The Air Battle for England") was a military campaign of the Second World War, in which the Royal Air Force (RAF) defended the United Kingdom (UK) against large-scale attacks by Nazi Germany's air force, the Luftwaffe. It has been described as the first major military campaign fought entirely by air forces. The British officially recognise the battle's duration as being from 10 July until 31 October 1940, which overlaps the period of large-scale night attacks known as the Blitz, that lasted from 7 September 1940 to 11 May 1941. German historians do not accept this subdivision and regard the battle as a single campaign lasting from July 1940 to June 1941, including the Blitz.The primary objective of the German forces was to compel Britain to agree to a negotiated peace settlement. In July 1940, the air and sea blockade began, with the Luftwaffe mainly targeting coastal-shipping convoys, ports and shipping centres, such as Portsmouth. On 1 August, the Luftwaffe was directed to achieve air superiority over the RAF with the aim of incapacitating RAF Fighter Command; 12 days later, it shifted the attacks to RAF airfields and infrastructure. As the battle progressed, the Luftwaffe also targeted factories involved in aircraft production and strategic infrastructure. Eventually, it employed terror bombing on areas of political significance and on civilians.The Germans had rapidly overwhelmed France and the Low Countries, leaving Britain to face the threat of invasion by sea. The German high command knew the difficulties of a seaborne attack and its impracticality while the Royal Navy controlled the English Channel and the North Sea. On 16 July, Adolf Hitler ordered the preparation of Operation Sea Lion as a potential amphibious and airborne assault on Britain, to follow once the Luftwaffe had air superiority over the UK. In September, RAF Bomber Command night raids disrupted the German preparation of converted barges, and the Luftwaffe's failure to overwhelm the RAF forced Hitler to postpone and eventually cancel Operation Sea Lion. Germany proved unable to sustain daylight raids, but their continued night-bombing operations on Britain became known as the Blitz. Historian Stephen Bungay cited Germany's failure to destroy Britain's air defences to force an armistice (or even outright surrender) as the first major German defeat in World War II and a crucial turning point in the conflict. The Battle of Britain takes its name from a speech given by Prime Minister Winston Churchill to the House of Commons on 18 June: "What General Weygand called the 'Battle of France' is over. I expect that the battle of Britain is about to begin."
Hawker Fury
Shield wall (castle)
Cruiser Mk II
Cruiser tank
Messerschmitt P.1099
Grumman F6F Hellcat
Night fighter
Shea's Gas Station Museum
Norias of Hama
Catapult ( 21408 views )
A catapult is a ballistic device used to launch a projectile a great distance without the aid of explosive devices—particularly various types of ancient and medieval siege engines. In use since ancient times, the catapult has proven to be one of the most effective mechanisms during warfare. In modern times the term can apply to devices ranging from a simple hand-held implement (also called a “slingshot”) to a mechanism for launching aircraft from a ship.
Crank (mechanism)
Virge
Cavalry ( 11526 views )
Licensed under GNU Free Documentation License 1.2 (Archiwum Kancelarii Prezydenta RP).
Cavalry (from the French cavalerie, cf. cheval 'horse') or horsemen are soldiers or warriors who fight mounted on horseback. Cavalry were historically the most mobile of the combat arms. An individual soldier in the cavalry is known by a number of designations such as cavalryman, horseman, dragoon, or trooper. The designation of cavalry was not usually given to any military forces that used other animals, such as camels, mules or elephants. Infantry who moved on horseback, but dismounted to fight on foot, were known in the 17th and early 18th centuries as dragoons, a class of mounted infantry which later evolved into cavalry proper while retaining their historic title. Cavalry had the advantage of improved mobility, and a man fighting from horseback also had the advantages of greater height, speed, and inertial mass over an opponent on foot. Another element of horse mounted warfare is the psychological impact a mounted soldier can inflict on an opponent. The speed, mobility and shock value of the cavalry was greatly appreciated and exploited in armed forces in the Ancient and Middle Ages; some forces were mostly cavalry, particularly in nomadic societies of Asia, notably the Mongol armies. In Europe cavalry became increasingly armoured (heavy), and eventually became known for the mounted knights. During the 17th century cavalry in Europe lost most of its armor, ineffective against the muskets and cannon which were coming into use, and by the mid-19th century armor had mainly fallen into disuse, although some regiments retained a small thickened cuirass that offered protection against lances and sabres and some protection against shot. In the period between the World Wars, many cavalry units were converted into motorized infantry and mechanized infantry units, or reformed as tank troops. However, some cavalry still served during World War II, notably in the Red Army, the Mongolian People's Army, the Royal Italian Army, the Romanian Army, the Polish Land Forces, and light reconnaissance units within the Waffen SS. Most cavalry units that are horse-mounted in modern armies serve in purely ceremonial roles, or as mounted infantry in difficult terrain such as mountains or heavily forested areas. Modern usage of the term generally refers to units performing the role of reconnaissance, surveillance, and target acquisition (RSTA).
Ceremonial weapon
Equestrianism
Classification of swords
Ceremonial weapon ( 5633 views )
A ceremonial weapon is an object used for ceremonial purposes to display power or authority. They are often used in parades and as part of dress uniforms. Although they are descended from weapons used in actual combat, they are not normally used as such. Their form and, especially, their finishing and decoration are typically designed to show status and power and to be an impressive sight, rather than for practicality as a weapon. Quite often, ceremonial weapons are constructed with precious metals or other materials that make them too delicate for combat use. With ceremonial swords, an example of this is that the sword may be poorly balanced. Historically, however, many ceremonial weapons were also capable of actual combat, most notably in the military. Maces, halberds, daggers and swords are the most common form of ceremonial weapons, but in theory almost any weapon can become ceremonial. The Sergeant at Arms in some parliaments carries a ceremonial mace. The Swiss Guard in the Vatican carry both ceremonial weapons (halberds and swords) and 21st century weapons (semi-automatic pistols). Mid 20th century rifles such as the American M14 and the Russian SKS, fitted with polished wood stocks, chrome plating and other decorative finishes, are common ceremonial weapons for honor guard units. Another example is the use of a firearm to signal the start of a race. Guns are also used in celebratory gunfire.
Mace (bludgeon)
Chariot ( 22192 views )
Licensed under Creative Commons Attribution-Share Alike 2.0 (Álvaro Pérez Vilariño).
A chariot is a type of carriage driven by a charioteer, usually using horses to provide rapid motive power. Chariots were used by armies as transport or mobile archery platforms, for hunting or for racing, and as a conveniently fast way to travel for many ancient people. The word "chariot" comes from the Latin term carrus, a loanword from Gaulish. A chariot of war or one used in military parades was called a car. In ancient Rome and some other ancient Mediterranean civilizations, a biga required two horses, a triga three, and a quadriga four. The chariot was a fast, light, open, two-wheeled conveyance drawn by two or more horses that were hitched side by side, and was little more than a floor with a waist-high guard at the front and sides. It was initially used for ancient warfare during the Bronze and Iron Ages; but, after its military capabilities had been superseded by cavalry, as horses were gradually bred to be bigger, the chariot was used for travel, in processions, for games, and in races. The critical invention that allowed the construction of light, horse-drawn chariots was the spoked wheel. The earliest spoke-wheeled chariots date to ca. 2000 BC. The use of chariots peaked around 1300 BC (see Battle of Kadesh). Chariots had lost their military importance by the 1st century AD, but chariot races continued to be popular in Constantinople until the 6th century.
Igman Olympic Jumps
Olympus OM-10
Chariot racing ( 11502 views )
Chariot racing (Greek: ἁρματοδρομία, translit. harmatodromia, Latin: ludi circenses) was one of the most popular Iranian, ancient Greek, Roman, and Byzantine sports. Chariot racing was dangerous to both drivers and horses as they often suffered serious injury and even death, but these dangers added to the excitement and interest for spectators. Chariot races could be watched by women, who were banned from watching many other sports. In the Roman form of chariot racing, teams represented different groups of financial backers and sometimes competed for the services of particularly skilled drivers. As in modern sports like football, spectators generally chose to support a single team, identifying themselves strongly with its fortunes, and violence sometimes broke out between rival factions. The rivalries were sometimes politicized, when teams became associated with competing social or religious ideas. This helps explain why Roman and later Byzantine emperors took control of the teams and appointed many officials to oversee them. The sport faded in importance in the West after the fall of Rome. It survived for a time in the Byzantine Empire, where the traditional Roman factions continued to play a prominent role for several centuries, gaining influence in political matters. Their rivalry culminated in the Nika riots, which marked the gradual decline of the sport.
Air racing
Cheetah Racing Cars
Lawn mower racing
Classification of swords ( 7237 views )
Licensed under Creative Commons Attribution 4.0 (MathKnight).
The English language terminology used in the classification of swords is imprecise and has varied widely over time. There is no historical dictionary for the universal names, classification or terminology of swords; a sword was simply called "sword" in whatever language the swordsmen spoke. Historical terms without a universal consensus of definition (i.e. "arming sword", "broadsword", "long sword", etc.) were used to label weapons of similar appearance but of different historical periods, regional cultures and fabrication technology. These terms were often described in relation to other unrelated weapons, without regard to their intended use and fighting style. In modern history, many of these terms have been given specific, often arbitrary meanings that are unrelated to any of their historical meanings.
Jacob's ladder (knife)
Butterfly knife
Club (weapon) ( 14123 views )
A club (also known as a cudgel, baton, bludgeon, truncheon, cosh, or nightstick) is among the simplest of all weapons: a short staff or stick, usually made of wood, wielded as a weapon since prehistoric times. There are several examples of blunt-force trauma caused by clubs in the past, including at the site of Nataruk in Turkana, Kenya, described as the scene of a prehistoric conflict between bands of hunter-gatherers 10,000 years ago. In popular culture, clubs are associated with primitive cultures, especially cavemen. Most clubs are small enough to be swung with one hand, although larger clubs may require the use of two to be effective. Various specialized clubs are used in martial arts and other fields, including the law-enforcement baton. The military mace is a more sophisticated descendant of the club, typically made of metal and featuring a spiked, knobbed, or flanged head attached to a shaft. The wounds inflicted by a club are generally known as strike trauma or blunt-force trauma injuries.
Basket-hilted sword
Cold War ( 19412 views )
The Cold War was a period of geopolitical tension between the Soviet Union with its satellite states (the Eastern Bloc), and the United States with its allies (the Western Bloc) after World War II. A common historiography of the conflict begins with 1946, the year U.S. diplomat George F. Kennan's "Long Telegram" from Moscow cemented a U.S. foreign policy of containment of Soviet expansionism threatening strategically vital regions, and ending between the Revolutions of 1989 and the 1991 collapse of the USSR, which ended communism in Eastern Europe. The term "cold" is used because there was no large-scale fighting directly between the two sides, but they each supported major regional wars known as proxy wars. The Cold War split the temporary wartime alliance against Nazi Germany, leaving the Soviet Union and the United States as two superpowers with profound economic and political differences. The USSR was a Marxist–Leninist state led by its Communist Party, which in turn was dominated by a leader with different titles over time, and a small committee called the Politburo. The Party controlled the state, the press, the military, the economy, and many organizations throughout the Second World, including the Warsaw Pact and other satellites, and funded communist parties around the world, sometimes in competition with communist China, particularly following the Sino-Soviet split of the 1960s. In opposition stood the capitalist West, led by the United States, a federal republic with a two-party presidential system. The First World nations of the Western Bloc were generally liberal democratic with a free press and independent organizations, but were economically and politically entwined with a network of banana republics and other authoritarian regimes throughout the Third World, most of which were the Western Bloc's former colonies. Some major Cold War frontlines such as Vietnam, Indonesia, and the Congo were still Western colonies in 1947. A neutral bloc arose with the Non-Aligned Movement, which sought good relations with both sides. Notwithstanding relatively isolated incidents of air-to-air dogfights and shoot-downs, the two superpowers never engaged directly in full-scale armed combat. However, both were heavily armed in preparation for a possible all-out nuclear world war. Each side had a nuclear strategy that discouraged an attack by the other side, on the basis that such an attack would lead to the total destruction of the attacker—the doctrine of mutually assured destruction (MAD). Aside from the development of the two sides' nuclear arsenals, and their deployment of conventional military forces, the struggle for dominance was expressed via proxy wars around the globe, psychological warfare, massive propaganda campaigns and espionage, far-reaching embargos, rivalry at sports events, and technological competitions such as the Space Race. The first phase of the Cold War began in the first two years after the end of the Second World War in 1945. The USSR consolidated its control over the states of the Eastern Bloc, while the United States began a strategy of global containment to challenge Soviet power, extending military and financial aid to the countries of Western Europe (for example, supporting the anti-communist side in the Greek Civil War) and creating the NATO alliance. The Berlin Blockade (1948–49) was the first major crisis of the Cold War. With the victory of the Communist side in the Chinese Civil War and the outbreak of the Korean War (1950–53), the conflict expanded. The USSR and the US competed for influence in Latin America and the decolonizing states of Africa and Asia. The Soviets suppressed the Hungarian Revolution of 1956. The expansion and escalation sparked more crises, such as the Suez Crisis (1956), the Berlin Crisis of 1961, and the Cuban Missile Crisis of 1962, which was perhaps the closest the two sides came to nuclear war. Meanwhile, an international peace movement took root and grew among citizens around the world, first in Japan from 1954, when people became concerned about nuclear weapons testing, but soon also in Europe and the US. The peace movement, and in particular the anti-nuclear movement, gained pace and popularity from the late 1950s and early 1960s, and continued to grow through the '70s and '80s with large protest marches, demonstrations, and various non-parliamentary activism opposing war and calling for global nuclear disarmament. Following the Cuban Missile Crisis, a new phase began that saw the Sino-Soviet split complicate relations within the Communist sphere, while US allies, particularly France, demonstrated greater independence of action. The USSR crushed the 1968 Prague Spring liberalization program in Czechoslovakia, while the US experienced internal turmoil from the civil rights movement and opposition to the Vietnam War (1955–75), which ended with the defeat of the US-backed Republic of Vietnam, prompting further adjustments. By the 1970s, both sides had become interested in making allowances in order to create a more stable and predictable international system, ushering in a period of détente that saw Strategic Arms Limitation Talks and the US opening relations with the People's Republic of China as a strategic counterweight to the Soviet Union. Détente collapsed at the end of the decade with the beginning of the Soviet–Afghan War in 1979. The early 1980s were another period of elevated tension, with the Soviet downing of KAL Flight 007 and the "Able Archer" NATO military exercises, both in 1983. The United States increased diplomatic, military, and economic pressures on the Soviet Union, at a time when the communist state was already suffering from economic stagnation. On 12 June 1982, a million protesters gathered in Central Park, New York to call for an end to the Cold War arms race and nuclear weapons in particular. In the mid-1980s, the new Soviet leader Mikhail Gorbachev introduced the liberalizing reforms of perestroika ("reorganization", 1987) and glasnost ("openness", c. 1985) and ended Soviet involvement in Afghanistan. Pressures for national independence grew stronger in Eastern Europe, especially Poland. Gorbachev meanwhile refused to use Soviet troops to bolster the faltering Warsaw Pact regimes as had occurred in the past. The result in 1989 was a wave of revolutions that peacefully (with the exception of the Romanian Revolution) overthrew all of the communist regimes of Central and Eastern Europe. The Communist Party of the Soviet Union itself lost control and was banned following an abortive coup attempt in August 1991. This in turn led to the formal dissolution of the USSR in December 1991 and the collapse of communist regimes in other countries such as Mongolia, Cambodia, and South Yemen. The United States remained as the world's only superpower. The Cold War and its events have left a significant legacy. It is often referred to in popular culture, especially in media featuring themes of espionage (notably the internationally successful James Bond book and film franchise) and the threat of nuclear warfare. Meanwhile, a renewed state of tension between the Soviet Union's successor state, Russia, and the United States in the 2010s (including its Western allies) has been referred to as the Second Cold War.
Dominance (ethology)
Combat ( 8602 views )
Combat (French for fight) is a purposeful violent conflict meant to weaken, establish dominance over, or kill the opposition, or to drive the opposition away from a location where it is not wanted or needed. Combat is typically between opposing military forces in warfare. Combat violence can be unilateral, whereas fighting implies at least a defensive reaction. A large-scale fight is known as a battle. A verbal fight is commonly known as an argument. Combat effectiveness, in the strategic field, requires combat readiness. In military areas, the term is applied also to personnel, that has to receive proper training and be qualified to carry out combat operations in the unit to which they are assigned.