Armour (British English) or armor (American English; see spelling differences) is a protective covering that is used to prevent damage from being inflicted to an object, individual or vehicle by direct contact weapons or projectiles, usually during combat, or from damage caused by a potentially dangerous environment or activity (e.g., cycling, construction sites, etc.). Personal armour is used to protect soldiers and war animals. Vehicle armour is used on warships and armoured fighting vehicles.
A second use of the term armour describes armoured forces, armoured weapons, and their role in combat. After the evolution of armoured warfare, mechanised infantry and their weapons came to be referred to collectively as "armour".
The word "armour" began to appear in the Middle Ages as a derivative of Old French. It is dated from 1297 as a "mail, defensive covering worn in combat". The word originates from the Old French armure, itself derived from the Latin armatura meaning "arms and/or equipment", with the root armare meaning "arms or gear".
Armour has been used throughout recorded history. It has been made from a variety of materials, beginning with the use of leathers or fabrics as protectionand evolving through mail and metal plate into today's modern composites. For much of military history the manufacture of metal personal armour has dominated the technology and employment of armour. Armour drove the development of many important technologies of the Ancient World, including wood lamination, mining, metal refining, vehicle manufacture, leather processing, and later decorative metal working. Its production was influential in the industrial revolution, and furthered commercial development of metallurgy and engineering. Armour was the single most influential factor in the development of firearms, which in turn revolutionised warfare.
Significant factors in the development of armour include the economic and technological necessities of its production. For instance, plate armour first appeared in Medieval Europe when water-powered trip hammers made the formation of plates faster and cheaper. Also, modern militaries usually do not equip their forces with the best armour available because it would be prohibitively expensive. At times the development of armour has paralleled the development of increasingly effective weaponry on the battlefield, with armourers seeking to create better protection without sacrificing mobility.
Well-known armour types in European history include the lorica hamata, lorica squamata, and the lorica segmentata of the Roman legions, the mail hauberk of the early medieval age, and the full steel plate harness worn by later medieval and renaissance knights, and breast and back plates worn by heavy cavalry in several European countries until the first year of World War I (1914–15). The samurai warriors of feudal Japan utilised many types of armour for hundreds of years up to the 19th century.
Cuirasses and helmets were manufactured in Japan as early as the 4th century.Tankō, worn by foot soldiers and keikō, worn by horsemen were both pre-samurai types of early Japanese armour constructed from iron plates connected together by leather thongs. Japanese lamellar armour (keiko) passed through Korea and reached Japan around the 5th century. These early Japanese lamellar armours took the form of a sleeveless jacket, leggings and a helmet.
Armour did not always cover all of the body; sometimes no more than a helmet and leg plates were worn. The rest of the body was generally protected by means of a large shield. Examples of armies equipping their troops in this fashion were the Aztecs (13th to 15th century CE).
In East Asia many types of armour were commonly used at different times by various cultures, including scale armour, lamellar armour, laminar armour, plated mail, mail, plate armour and brigandine. Around the dynastic Tang, Song, and early Ming Period, cuirasses and plates (mingguangjia) were also used, with more elaborate versions for officers in war. The Chinese, during that time used partial plates for "important" body parts instead of covering their whole body since too much plate armour hinders their martial arts movement. The other body parts were covered in cloth, leather, lamellar, or Mountain pattern. In pre-Qin dynasty times, leather armour was made out of various animals, with more exotic ones such as the rhinoceros.
Mail, sometimes called "chainmail", made of interlocking iron rings is believed to have first appeared some time after 300 BC. Its invention is credited to the Celts; the Romans are thought to have adopted their design.
Gradually, small additional plates or discs of iron were added to the mail to protect vulnerable areas. Hardened leather and splinted construction were used for arm and leg pieces. The coat of plates was developed, an armour made of large plates sewn inside a textile or leather coat.
Early plate in Italy, and elsewhere in the 13th–15th century, were made of iron. Iron armour could be carburised or case hardened to give a surface of harder steel.Plate armour became cheaper than mail by the 15th century as it required much less labour and labour had become much more expensive after the Black Death, though it did require larger furnaces to produce larger blooms. Mail continued to be used to protect those joints which could not be adequately protected by plate, such as the armpit, crook of the elbow and groin. Another advantage of plate was that a lance rest could be fitted to the breast plate.
The small skull cap evolved into a bigger true helmet, the bascinet, as it was lengthened downward to protect the back of the neck and the sides of the head. Additionally, several new forms of fully enclosed helmets were introduced in the late 14th century.
Probably the most recognised style of armour in the world became the plate armour associated with the knights of the European Late Middle Ages, but continuing to the early 17th century Age of Enlightenment in all European countries.
By about 1400 the full harness of plate armour had been developed in armouries of Lombardy.Heavy cavalry dominated the battlefield for centuries in part because of their armour.
In the early 15th century, advances in weaponry allowed infantry to defeat armoured knights on the battlefield. The quality of the metal used in armour deteriorated as armies became bigger and armour was made thicker, necessitating breeding of larger cavalry horses. If during the 14–15th centuries armour seldom weighed more than 15 kg, then by the late 16th century it weighed 25 kg. The increasing weight and thickness of late 16th century armour therefore gave substantial resistance.
In the early years of low velocity firearms, full suits of armour, or breast plates actually stopped bullets fired from a modest distance. Crossbow bolts, if still used, would seldom penetrate good plate, nor would any bullet unless fired from close range. In effect, rather than making plate armour obsolete, the use of firearms stimulated the development of plate armour into its later stages. For most of that period, it allowed horsemen to fight while being the targets of defending arquebusiers without being easily killed. Full suits of armour were actually worn by generals and princely commanders right up to the second decade of the 18th century. It was the only way they could be mounted and survey the overall battlefield with safety from distant musket fire.
The horse was afforded protection from lances and infantry weapons by steel plate barding. This gave the horse protection and enhanced the visual impression of a mounted knight. Late in the era, elaborate barding was used in parade armour.
Gradually, starting in the mid-16th century, one plate element after another was discarded to save weight for foot soldiers.
Back and breast plates continued to be used throughout the entire period of the 18th century and through Napoleonic times, in many European (heavy) cavalry units, until the early 20th century. From their introduction, muskets could pierce plate armour, so cavalry had to be far more mindful of the fire. In Japan armour continued to be used until the end of the samurai era, with the last major fighting in which armour was used happening in 1868.Samurai armour had one last short lived use in 1877 during the Satsuma Rebellion.
Though the age of the knight was over, armour continued to be used in many capacities. Soldiers in the American Civil War bought iron and steel vests from peddlers (both sides had considered but rejected body armour for standard issue). The effectiveness of the vests varied widely—some successfully deflected bullets and saved lives, but others were poorly made and resulted in tragedy for the soldiers. In any case the vests were abandoned by many soldiers due to their weight on long marches as well as the stigma they got for being cowards from their fellow troops.
At the start of World War I, thousands of the French Cuirassiers rode out to engage the German Cavalry. By that period, the shiny armour plate was covered in dark paint and a canvas wrap covered their elaborate Napoleonic style helmets. Their armour was meant to protect only against sabres and light lances. The cavalry had to beware of high velocity rifles and machine guns, unlike the foot soldiers, who at least had a trench to protect them.
Today, ballistic vests, also known as flak jackets, made of ballistic cloth (e.g. kevlar, dyneema, twaron, spectra etc.) and ceramic or metal plates are common among police forces, security staff, corrections officers and some branches of the military.
The US Army has adopted Interceptor body armour, which uses Enhanced Small Arms Protective Inserts (ESAPIs) in the chest, sides, and back of the armour. Each plate is rated to stop a range of ammunition including 3 hits from a 7.62×51 NATO AP round at a range of 10 m (33 ft). Dragon Skin is another ballistic vest which is currently in testing with mixed results. As of 2019, it has been deemed too heavy, expensive, and unreliable, in comparison to more tradition plates, and it is outdated in protection compared to modern US IOTV armour, and even in testing was deemed a downgrade from the IBA.
The British Armed Forces also have their own armour, known as Osprey. It is rated to the same general equivalent standard as the US counterpart, the Improved Outer Tactical Vest, and now the Soldier Plate Carrier System and Modular Tactical Vest.
The Russian Armed Forces also have armour, known as the 6B43, all the way to 6B45, depending on variant.
Their armor runs on the GOST system, which, due to regional conditions, has resulted in a technically higher protective level overall.
The first modern production technology for armour plating was used by navies in the construction of the Ironclad warship, reaching its pinnacle of development with the battleship. The first tanks were produced during World War I. Aerial armour has been used to protect pilots and aircraft systems since the First World War.
In modern ground forces' usage, the meaning of armour has expanded to include the role of troops in combat. After the evolution of armoured warfare, mechanised infantry were mounted in armoured fighting vehicles and replaced light infantry in many situations. In modern armoured warfare, armoured units equipped with tanks and infantry fighting vehicles serve the historic role of both the battle cavalry, light cavalry and dragoons, and belong to the armoured branch.
The first ironclad battleship, with iron armour over a wooden hull, La Gloire , was launched by the French Navy in 1859prompting the British Royal Navy to build a counter. The following year they launched HMS Warrior, which was twice the size and had iron armour over an iron hull. After the first battle between two ironclads took place in 1862 during the American Civil War, it became clear that the ironclad had replaced the unarmoured line-of-battle ship as the most powerful warship afloat.
Ironclads were designed for several roles, including as high seas battleships, coastal defence ships, and long-range cruisers. The rapid evolution of warship design in the late 19th century transformed the ironclad from a wooden-hulled vessel which carried sails to supplement its steam engines into the steel-built, turreted battleships and cruisers familiar in the 20th century. This change was pushed forward by the development of heavier naval guns (the ironclads of the 1880s carried some of the heaviest guns ever mounted at sea)[ citation needed ], more sophisticated steam engines, and advances in metallurgy which made steel shipbuilding possible.
The rapid pace of change in the ironclad period meant that many ships were obsolete as soon as they were complete, and that naval tactics were in a state of flux. Many ironclads were built to make use of the ram or the torpedo, which a number of naval designers considered the crucial weapons of naval combat. There is no clear end to the ironclad period, but towards the end of the 1890s the term ironclad dropped out of use. New ships were increasingly constructed to a standard pattern and designated battleships or armoured cruisers.
Armoured trains saw use during the 19th century in the American Civil War (1861–1865), the Franco-Prussian War (1870–1871), the First and Second Boer Wars (1880–81 and 1899–1902),the Polish–Soviet War (1919–1921); the First (1914–1918) and Second World Wars (1939–1945) and the First Indochina War (1946–1954). The most intensive use of armoured trains was during the Russian Civil War (1918–1920).
Armoured cars saw use during World wars 1 and 2.
During the Second Boer War on 15 November 1899, Winston Churchill, then a war-correspondent, was travelling on board an armoured train when it was ambushed by Boer commandos. Churchill and many of the train's garrison were captured, though many others escaped, including wounded placed on the train's engine.
Ancient siege engines were usually protected by wooden armour, often covered with wet hides or thin metal to prevent being easily burned.
Medieval war wagons were horse-drawn wagons that were similarly armoured. These contained guns or crossbowmen that could fire through gun-slits.
The first modern AFVs were armoured cars, developed circa 1900. These started as ordinary wheeled motor-cars protected by iron shields, typically mounting a machine gun.
During World War I, the stalemate of trench warfare during on the Western Front spurred the development of the tank. It was envisioned as an armoured machine that could advance under fire from enemy rifles and machine guns, and respond with its own heavy guns. It utilized caterpillar tracks to cross ground broken up by shellfire and trenches.
With the development of effective anti-aircraft artillery in the period before the Second World War, military pilots, once the "knights of the air" during the First World War, became far more vulnerable to ground fire. As a response armour plating was added to aircraft to protect aircrew and vulnerable areas such as fuel tanks and engine.
Tank armour has progressed from the Second World War armour forms, now incorporating not only harder composites, but also reactive armour designed to defeat shaped charges. As a result of this, the main battle tank (MBT) conceived in the Cold War era can survive multiple RPG strikes with minimal effect on the crew or the operation of the vehicle. The light tanks that were the last descendants of the light cavalry during the Second World War have almost completely disappeared from the world's militaries due to increased lethality of the weapons available to the vehicle-mounted infantry.
The armoured personnel carrier (APC) was devised during World War I. It allows the safe and rapid movement of infantry in a combat zone, minimising casualties and maximising mobility. APCs are fundamentally different from the previously used armoured half-tracks in that they offer a higher level of protection from artillery burst fragments, and greater mobility in more terrain types. The basic APC design was substantially expanded to an Infantry fighting vehicle (IFV) when properties of an armoured personnel carrier and a light tank were combined in one vehicle.
Naval armour has fundamentally changed from the Second World War doctrine of thicker plating to defend against shells, bombs and torpedoes. Passive defence naval armour is limited to kevlar or steel (either single layer or as spaced armour) protecting particularly vital areas from the effects of nearby impacts. Since ships cannot carry enough armour to completely prevent penetration by anti-ship missiles, they depend more on destroying an incoming missile before it hits, or causing it to miss its target.
Although the role of the ground attack aircraft significantly diminished after the Korean War, it re-emerged during the Vietnam War, and in the recognition of this, the US Air Force authorised the design and production of what became the A-10 dedicated anti-armour and ground-attack aircraft that first saw action in the Gulf War.
High-voltage transformer fire barriers are often required to defeat ballistics from small arms as well as projectiles from transformer bushings and lightning arresters, which form part of large electrical transformers, per NFPA 850. Such fire barriers may be designed to inherently function as armour, or may be passive fire protection materials augmented by armour, where care must be taken to ensure that the armour's reaction to fire does not cause issues with regards to the fire barrier being armoured to defeat explosions and projectiles in addition to fire, especially since both functions must be provided simultaneously, meaning they must be fire-tested together to provide realistic evidence of fitness for purpose.
Combat drones use little to no vehicular armour as they are not manned vessels, this results in them being lightweight and small in size.
Barding (also spelled bard or barb) is body armour for war horses, especially as used by European knights.
During the late Middle Ages as armour protection for knights became more effective, their mounts became targets. This vulnerability was exploited by the Scots at the Battle of Bannockburn in the 14th century, when horses were killed by the infantry, and for the English at the Battle of Crécy in the same century where longbowmen shot horses and the then dismounted French knights were killed by heavy infantry. Barding developed as a response to such events.
Examples of armour for horses could be found as far back as classical antiquity. Cataphracts, with scale armour for both rider and horse, are believed by many historians to have influenced the later European knights, via contact with the Byzantine Empire.
Surviving period examples of barding are rare; however, complete sets are on display at the Philadelphia Museum of Art,the Wallace Collection in London, the Royal Armouries in Leeds, and the Metropolitan Museum of Art in New York. Horse armour could be made in whole or in part of cuir bouilli (hardened leather), but surviving examples of this are especially rare.
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An armored fighting vehicle (AFV) is an armed combat vehicle protected by armour, generally combining operational mobility with offensive and defensive capabilities. AFVs can be wheeled or tracked. Main battle tanks, armoured cars, armoured self-propelled guns, and armoured personnel carriers are all examples of AFVs.
Mail is a type of armour consisting of small metal rings linked together in a pattern to form a mesh. It was generally in common military use between the 3rd century BC and the 14th century AD. A coat of this armour is often referred to as a hauberk, and sometimes a byrnie.
Infantry is a military specialization that engages in military combat on foot, distinguished from cavalry, artillery, and tank forces. Also known as foot soldiers or infantrymen, infantry traditionally relies on moving by foot between combats as well, but may also use mounts, military vehicles, or other transport. Infantry make up a large portion of all armed forces in most nations, and typically bear the largest brunt in warfare, as measured by casualties, deprivation, or physical and psychological stress.
A tank is an armoured fighting vehicle designed for front-line combat. Tanks have heavy firepower, strong armour, and good battlefield manoeuvrability provided by tracks and a powerful engine; usually their main armament is mounted in a turret. They are a mainstay of modern 20th and 21st century ground forces and a key part of combined arms combat.
Military tactics encompasses the art of organising and employing fighting forces on or near the battlefield. They involve the application of four battlefield functions which are closely related – kinetic or firepower, mobility, protection or security, and shock action. Tactics are a separate function from command and control and logistics. In contemporary military science, tactics are the lowest of three levels of warfighting, the higher levels being the strategic and operational levels. Throughout history, there has been a shifting balance between the four tactical functions, generally based on the application of military technology, which has led to one or more of the tactical functions being dominant for a period of time, usually accompanied by the dominance of an associated fighting arm deployed on the battlefield, such as infantry, artillery, cavalry or tanks.
The history of the tank begins with World War I, when armoured all-terrain fighting vehicles were introduced as a response to the problems of trench warfare, ushering in a new era of mechanized warfare. Though initially crude and unreliable, tanks eventually became a mainstay of ground armies. By World War II, tank design had advanced significantly, and tanks were used in quantity in all land theatres of the war. The Cold War saw the rise of modern tank doctrine and the rise of the general-purpose main battle tank. The tank still provides the backbone to land combat operations in the 21st century.
Plate armour is a historical type of personal body armour made from bronze, iron or steel plates, culminating in the iconic suit of armour entirely encasing the wearer. While there are early predecessors such as the Roman-era lorica segmentata, full plate armour developed in Europe during the Late Middle Ages, especially in the context of the Hundred Years' War, from the coat of plates worn over mail suits during the 14th century.
Cuirassiers were cavalry equipped with cuirass armour and firearms, first appearing in late 15th-century Europe. The first cuirassiers were produced as a result of armoured cavalry, such as the men-at-arms and demi-lancers, discarding their lances and adopting the use of pistols as their primary weapon. In the later 17th century, the cuirassier lost his limb armour and subsequently employed only the cuirass, and sometimes a helmet. By this time, the sword or sabre had become their primary weapon, pistols being relegated to a secondary function.
A casemate is a fortified gun emplacement or armored structure from which guns are fired. Originally, the term referred to a vaulted chamber in a fortress. In armoured fighting vehicles that do not have a turret for the main gun, the structure that accommodates the gun is termed the casemate.
Body armor, also known as body armour, personal armor/armour, or a suit/coat of armour, is protective clothing designed to absorb or deflect physical attacks. Historically used to protect military personnel, today it is also used by various types of police, private security guards or bodyguards, and occasionally ordinary civilians. Today there are two main types: regular non-plated body armor for moderate to substantial protection, and hard-plate reinforced body armor for maximum protection, such as used by combat soldiers.
Armoured warfare or armored 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.
Korean armor is armor that was traditionally used in ancient times by Koreans, those fighting in and on behalf of Korea, or Koreans fighting overseas. Examples of armor from the Korean Peninsula date back to at least the Korean Three Kingdoms period. Depending on the tactical situation, Korean armor also included horse-armor and other kinds of early anti-ballistic armor before the 20th century.
A kettle hat, also known as a war hat, is a type of helmet made of iron or steel in the shape of a brimmed hat. There are many design variations. The only common element is a wide brim that afforded extra protection to the wearer. It gained its common English language name from its resemblance to a metal cooking pot. The kettle hat was common all over Medieval Europe. It was called Eisenhut in German and chapel de fer in French.
Chinese armour was predominantly lamellar from the Warring States period onward, prior to which animal parts such as rhinoceros hide, rawhide, and turtle shells were used for protection. Lamellar armour was supplemented by scale armour since the Warring States period or earlier. Partial plate armour was popular from the Northern and Southern dynasties (420–589), and mail and mountain pattern armour from the Tang dynasty (618–907). mail had been known since the Han Dynasty, but did not see widespread production or battlefield use, and may have seen as "exotic foreign armor" used as a display of wealth for wealthier officers and soldiers. During the Ming dynasty (1368–1644), brigandine began to supplant lamellar armour and was used to a great degree into the Qing dynasty (1644–1912.). By the 19th century most Qing armour, which was of the brigandine type, were purely ceremonial, having kept the outer studs for aesthetic purposes, and omitted the protective metal plates.
Barding is body armour for war horses. The practice of armoring horses was first extensively developed in antiquity in the eastern kingdoms of Parthia and Pahlava, and after the conquests of Alexander the Great it made its way into European military practices via the Seleucid Empire and later Byzantine Empire. Though its historical roots lie in antiquity in the regions of what was once the Persian Empire, barded horses have become a symbol of the late European Middle Ages chivalry and the era of knights.
Heavy cavalry was a class of cavalry intended to deliver a charge on the battlefield and also to act as a tactical reserve; they are also often termed 'shock cavalry'. Although their equipment differed greatly depending on the region and historical period, heavy cavalry were generally mounted on large powerful horses, and were often equipped with some form of armour as well as either swords, lances, or battle axes. They were normally distinct from light cavalry, who were intended for use in scouting, patrolling, skirmishing, screening, harassing the enemy and in pursuit.
Armoured cavalry are combat units using armoured fighting vehicles (AFVs) instead of horses. They began to replace horse cavalry as the reconnaissance, screening and exploitation/pursuit arm in most armies after the First World War, although many armies continued to maintain horse cavalry through the end of the Second World War.
A coat of plates is a form of segmented torso armour consisting of overlapping metal plates riveted inside a cloth or leather garment. The coat of plates is considered part of the era of transitional armour and was normally worn as part of a full knightly harness. The coat saw its introduction in Europe among the warring elite in the 1180s or 1220s and was well established by the 1250s. It was in very common usage by the 1290s. By the 1350s it was universal among infantry militias as well. After about 1340, the plates covering the chest were combined to form an early breastplate, replacing the coat of plates. After 1370, the breastplate covered the entire torso. Different forms of the coat of plates, known as the brigandine and jack of plates, remained in use until the late 16th century.
Scholars agree that Japanese armour first appeared in the 4th century, with the discovery of the cuirass and basic helmets in graves. It is thought they originated from China via Korea. During the Heian period (794-1185), the Japanese cuirass evolved into the more familiar style of body armour worn by the samurai known as the dou or dō, with the use of leather straps (nerigawa), and lacquer for weatherproofing. Leather and/or iron scales were also used to construct samurai armours, with leather and eventually silk lace used to connect the individual scales (kozane) of these cuirasses. In the 16th century, Japan began trading with Europe, during what would become known as the Nanban trade. Samurai acquired European types of armour, which they modified and combined with domestic armour, as it provided better protection from the newly introduced matchlock muskets. When a united Japan entered the peaceful Edo period, samurai continued to use both plate and lamellar armour as a symbol of their status. Lightweight, portable, and secret hidden armours became popular, since personal protection was still needed against civil unrest.
Equites cataphractarii, or simply cataphractarii, were the most heavily armoured type of Roman cavalry in the Imperial Roman army and Late Roman army. The term derives from a Greek word, κατάφρακτος kataphraktos, meaning "covered over" or "completely covered".