Military technology is the application of technology for use in warfare. It comprises the kinds of technology that are distinctly military in nature and not civilian in application, usually because they lack useful or legal civilian applications, or are dangerous to use without appropriate military training. The line is porous; military inventions have been brought into civilian use throughout history, with sometimes minor modification if any, and civilian innovations have similarly been put to military use. Military technology is usually researched and developed by scientists and engineers specifically for use in battle by the armed forces. Many new technologies came as a result of the military funding of science. Armament engineering is the design, development, testing and lifecycle management of military weapons and systems. It draws on the knowledge of several traditional engineering disciplines, including mechanical engineering, electrical engineering,

mechatronics Mechatronics engineering also called mechatronics, is an interdisciplinary branch of engineering that focuses on the integration of mechanical, electrical and electronic engineering systems, and also includes a combination of robotics, electronics, ...

electro-optics Electro–optics is a branch of electrical engineering, electronic engineering, materials science, and material physics involving components, electronic devices such as lasers, laser diodes, LEDs, waveguides, etc. which operate by the propa ...

, aerospace engineering, materials engineering, and chemical engineering.

History

This section is divided into the broad cultural developments that affected military technology.

Ancient technology

The first use of stone tools may have begun during the Paleolithic Period. The earliest stone tools are from the site of Lomekwi, Turkana, dating from 3.3 million years ago. Stone tools diversified through the

Pleistocene The Pleistocene ( , often referred to as the ''Ice age'') is the geological epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in ...

Period, which ended ~12,000 years ago. The earliest evidence of warfare between two groups is recorded at the site of

Nataruk Nataruk in Turkana County, Kenya, is the site of an archaeological investigation which uncovered the 10,000-year-old remains of 27 people. The remains have garnered wide media attention for possible bioarchaeological evidence of interpersonal vio ...

in Turkana, Kenya, where human skeletons with major traumatic injuries to the head, neck, ribs, knees and hands, including an embedded obsidian bladelet on a skull, are evidence of inter-group conflict between groups of nomadic hunter-gatherers 10,000 years ago. Humans entered the

Bronze Age The Bronze Age is a historic period, lasting approximately from 3300 BC to 1200 BC, characterized by the use of bronze, the presence of writing in some areas, and other early features of urban civilization. The Bronze Age is the second prin ...

as they learned to smelt copper into an alloy with tin to make weapons. In Asia where copper-tin ores are rare, this development was delayed until trading in bronze began in the third millennium

BCE Common Era (CE) and Before the Common Era (BCE) are year notations for the Gregorian calendar (and its predecessor, the Julian calendar), the world's most widely used calendar era. Common Era and Before the Common Era are alternatives to the or ...

. In the Middle East and Southern European regions, the Bronze Age follows the Neolithic period, but in other parts of the world, the Copper Age is a transition from Neolithic to the Bronze Age. Although the Iron Age generally follows the Bronze Age, in some areas the

Iron Age The Iron Age is the final epoch of the three-age division of the prehistory and protohistory of humanity. It was preceded by the Stone Age ( Paleolithic, Mesolithic, Neolithic) and the Bronze Age ( Chalcolithic). The concept has been mostl ...

intrudes directly on the Neolithic from outside the region, with the exception of Sub-Saharan Africa where it was developed independently. The first large-scale use of iron weapons began in Asia Minor around the 14th century BCE and in Central Europe around the 11th century BCE followed by the Middle East (about 1000 BCE) and India and China. The

Assyria Assyria ( Neo-Assyrian cuneiform: , romanized: ''māt Aššur''; syc, ܐܬܘܪ, ʾāthor) was a major ancient Mesopotamian civilization which existed as a city-state at times controlling regional territories in the indigenous lands of the ...

ns are credited with the introduction of horse cavalry in warfare and the extensive use of iron weapons by 1100 BCE. Assyrians were also the first to use iron-tipped arrows.

Post-classical technology

The '' Wujing Zongyao'' (''Essentials of the Military Arts''), written by Zeng Gongliang, Ding Du, and others at the order of Emperor Renzong around 1043 during the

Song dynasty The Song dynasty (; ; 960–1279) was an imperial dynasty of China that began in 960 and lasted until 1279. The dynasty was founded by Emperor Taizu of Song following his usurpation of the throne of the Later Zhou. The Song conquered the rest ...

illustrate the eras focus on advancing intellectual issues and military technology due to the significance of warfare between the Song and the Liao, Jin, and Yuan to their north. The book covers topics of military strategy, training, and the production and employment of advanced weaponry. Advances in military technology aided the

in its defense against hostile neighbors to the north. The flamethrower found its origins in Byzantine-era

Greece Greece,, or , romanized: ', officially the Hellenic Republic, is a country in Southeast Europe. It is situated on the southern tip of the Balkans, and is located at the crossroads of Europe, Asia, and Africa. Greece shares land borders ...

, employing Greek fire (a chemically complex, highly flammable petrol fluid) in a device with a siphon hose by the 7th century. The earliest reference to Greek Fire in China was made in 917, written by

Wu Renchen Wu Renchen (吳任臣, ) ( 1628 – 1689), with courtesy names of Zhiyi (志伊), Erqi (爾器) and Zhenghong (征鴻), and an art name of Tuoyuan (託園), was a Chinese historian, mathematician, politician, and writer during the Qing dynasty. Or ...

in his '' Spring and Autumn Annals of the Ten Kingdoms''. In 919, the siphon projector-pump was used to spread the 'fierce fire oil' that could not be doused with water, as recorded by Lin Yu in his , hence the first credible Chinese reference to the flamethrower employing the chemical solution of Greek fire (see also Pen Huo Qi). Lin Yu mentioned also that the 'fierce fire oil' derived ultimately from one of China's maritime contacts in the 'southern seas', Arabia . In the Battle of Langshan Jiang in 919, the naval fleet of the Wenmu King from Wuyue defeated a Huainan army from the Wu state; Wenmu's success was facilitated by the use of 'fire oil' ('huoyou') to burn their fleet, signifying the first Chinese use of gunpowder in a battle. The Chinese applied the use of double- piston

bellows A bellows or pair of bellows is a device constructed to furnish a strong blast of air. The simplest type consists of a flexible bag comprising a pair of rigid boards with handles joined by flexible leather sides enclosing an approximately airtig ...

to pump petrol out of a single cylinder (with an upstroke and downstroke), lit at the end by a slow-burning gunpowder match to fire a continuous stream of flame. This device was featured in description and illustration of the '' Wujing Zongyao'' military manuscript of 1044. In the suppression of the

Southern Tang Southern Tang () was a state in Southern China that existed during Five Dynasties and Ten Kingdoms period, which proclaimed itself to be the successor of the former Tang dynasty. The capital was located at Nanjing in present-day Jiangsu Province. ...

state by 976, early Song naval forces confronted them on the Yangtze River in 975. Southern Tang forces attempted to use flamethrowers against the Song navy, but were accidentally consumed by their own fire when violent winds swept in their direction. Although the destructive effects of gunpowder were described in the earlier

Tang dynasty The Tang dynasty (, ; zh, t= ), or Tang Empire, was an imperial dynasty of China that ruled from 618 to 907 AD, with an interregnum between 690 and 705. It was preceded by the Sui dynasty and followed by the Five Dynasties and Ten Kingdom ...

by a

Daoist Taoism (, ) or Daoism () refers to either a school of philosophical thought (道家; ''daojia'') or to a religion (道教; ''daojiao''), both of which share ideas and concepts of Chinese origin and emphasize living in harmony with the '' Tao ...

alchemist, the earliest developments of the gun barrel and the projectile-fire

cannon A cannon is a large- caliber gun classified as a type of artillery, which usually launches a projectile using explosive chemical propellant. Gunpowder ("black powder") was the primary propellant before the invention of smokeless powder ...

were found in late Song China. The first art depiction of the Chinese '

fire lance The fire lance () was a gunpowder weapon and the ancestor of modern firearms. It first appeared in 10th–12th century China and was used to great effect during the Jin-Song Wars. It began as a small pyrotechnic device attached to a polearm weap ...

' (a combination of a temporary-fire flamethrower and gun) was from a Buddhist mural painting of Dunhuang, dated circa 950.Needham, Volume 5, Part 7, 224–225. These 'fire-lances' were widespread in use by the early 12th century, featuring hollowed bamboo poles as tubes to fire sand particles (to blind and choke), lead pellets, bits of sharp metal and pottery shards, and finally large gunpowder-propelled arrows and rocket weaponry. Eventually, perishable bamboo was replaced with hollow tubes of cast iron, and so too did the terminology of this new weapon change, from ' fire-spear' to 'fire-tube' . This ancestor to the gun was complemented by the ancestor to the cannon, what the Chinese referred to since the 13th century as the 'multiple bullets magazine erupter' , a tube of bronze or cast iron that was filled with about 100 lead balls. The earliest known depiction of a gun is a sculpture from a cave in

Sichuan Sichuan (; zh, c=, labels=no, ; zh, p=Sìchuān; alternatively romanized as Szechuan or Szechwan; formerly also referred to as "West China" or "Western China" by Protestant missions) is a province in Southwest China occupying most of the ...

, dating to 1128, that portrays a figure carrying a vase-shaped

bombard __NOTOC__ Bombard may refer to the act of carrying out a bombardment. It may also refer to: Individuals *Alain Bombard (1924–2005), French biologist, physician and politician; known for crossing the Atlantic on a small boat with no water or food ...

, firing flames and a cannonball. However, the oldest existent archaeological discovery of a metal barrel handgun is from the Chinese Heilongjiang excavation, dated to 1288. The Chinese also discovered the explosive potential of packing hollowed cannonball shells with gunpowder. Written later by Jiao Yu in his ''

Huolongjing The ''Huolongjing'' (; Wade-Giles: ''Huo Lung Ching''; rendered in English as ''Fire Drake Manual'' or ''Fire Dragon Manual''), also known as ''Huoqitu'' (“Firearm Illustrations”), is a Chinese military treatise compiled and edited by Jiao ...

'' (mid-14th century), this manuscript recorded an earlier Song-era cast-iron cannon known as the 'flying-cloud thunderclap eruptor' (fei yun pi-li pao). The manuscript stated that: As noted before, the change in terminology for these new weapons during the Song period were gradual. The early Song cannons were at first termed the same way as the Chinese

trebuchet A trebuchet (french: trébuchet) is a type of catapult that uses a long arm to throw a projectile. It was a common powerful siege engine until the advent of gunpowder. The design of a trebuchet allows it to launch projectiles of greater weight ...

catapult. A later

Ming dynasty The Ming dynasty (), officially the Great Ming, was an imperial dynasty of China, ruling from 1368 to 1644 following the collapse of the Mongol-led Yuan dynasty. The Ming dynasty was the last orthodox dynasty of China ruled by the Han peo ...

scholar known as Mao Yuanyi would explain this use of terminology and true origins of the cannon in his text of the ''

Wubei Zhi The ''Wubei Zhi'' (; ''Treatise on Armament Technology'' or ''Records of Armaments and Military Provisions''), also commonly known by its Japanese translated name Bubishi, is a military book in Chinese history. It was compiled in 1621 by Mao Yu ...

'', written in 1628: The 14th-century ''

'' was also one of the first Chinese texts to carefully describe to the use of explosive land mines, which had been used by the late Song Chinese against the Mongols in 1277, and employed by the

Yuan dynasty The Yuan dynasty (), officially the Great Yuan (; xng, , , literally "Great Yuan State"), was a Mongol-led imperial dynasty of China and a successor state to the Mongol Empire after its division. It was established by Kublai, the fift ...

afterwards. The innovation of the detonated land mine was accredited to one Luo Qianxia in the campaign of defense against the Mongol invasion by Kublai Khan, Later Chinese texts revealed that the Chinese land mine employed either a rip cord or a motion booby trap of a pin releasing falling weights that rotated a steel flint wheel, which in turn created sparks that ignited the train of

fuses Fuse or FUSE may refer to: Devices * Fuse (electrical), a device used in electrical systems to protect against excessive current ** Fuse (automotive), a class of fuses for vehicles * Fuse (hydraulic), a device used in hydraulic systems to protec ...

for the land mines. Furthermore, the Song employed the earliest known gunpowder-propelled rockets in warfare during the late 13th century, its earliest form being the archaic

Fire Arrow Fire arrows were one of the earliest forms of weaponized gunpowder, being used from the 9th century onward. Not to be confused with earlier incendiary arrow projectiles, the fire arrow was a gunpowder weapon which receives its name from the tra ...

. When the Northern Song capital of Kaifeng fell to the Jurchens in 1126, it was written by Xia Shaozeng that 20,000 fire arrows were handed over to the Jurchens in their conquest. An even earlier Chinese text of the '' Wujing Zongyao'' ("Collection of the Most Important Military Techniques"), written in 1044 by the Song scholars Zeng Kongliang and Yang Weide, described the use of three spring or triple bow arcuballista that fired arrow bolts holding gunpowder packets near the head of the arrow. Going back yet even farther, the (1630, second edition 1664) of Fang Yizhi stated that fire arrows were presented to

Emperor Taizu of Song Emperor Taizu of Song (21 March 927 – 14 November 976), personal name Zhao Kuangyin, courtesy name Yuanlang, was the founder and first emperor of the Song dynasty of China. He reigned from 960 until his death in 976. Formerly a distinguish ...

(r. 960–976) in 960.

Modern technology

Armies

The Islamic gunpowder empires introduced numerous developed firearms, cannon and small arms. During the period of

Proto-industrialization Proto-industrialization is the regional development, alongside commercial agriculture, of rural handicraft production for external markets. The term was introduced in the early 1970s by economic historians who argued that such developments in pa ...

, newly invented weapons were seen to be used in Mughal India. Rapid development in military technology had a dramatic impact on armies and navies in the industrialized world in 1740–1914. For land warfare, cavalry faded in importance, while infantry became transformed by the use of highly accurate more rapidly loading rifles, and the use of smokeless powder. Machine guns were developed in the 1860s in Europe.

Rocket artillery Rocket artillery is artillery that uses rocket explosives as the projectile. The use of rocket artillery dates back to medieval China where devices such as fire arrows were used (albeit mostly as a psychological weapon). Fire arrows were also ...

and the Mysorean rockets, both pioneered by Indian Muslim Tipu Sultan, became more powerful as new high explosives (based on nitroglycerin) arrived during the Anglo-Mysore Wars, and the French introduced much more accurate rapid-fire field artillery. Logistics and communications support for land warfare dramatically improved with use of railways and telegraphs. Industrialization provided a base of factories that could be converted to produce munitions, as well as uniforms, tents, wagons and essential supplies. Medical facilities were enlarged and reorganized based on improved hospitals and the creation of modern nursing, typified by Florence Nightingale in Britain during the Crimean War of 1854–56.

Naval

Naval warfare was transformed by many innovations, most notably the coal-based steam engine, highly accurate long-range naval guns, heavy steel armour for battleships, mines, and the introduction of the torpedo, followed by the torpedo boat and the destroyer. Coal after 1900 was eventually displaced by more efficient oil, but meanwhile navies with an international scope had to depend on a network of coaling stations to refuel. The British Empire provided them in abundance, as did the French Empire to a lesser extent. War colleges developed, as military theory became a specialty; cadets and senior commanders were taught the theories of Jomini, Clausewitz and Mahan, and engaged in tabletop war games. Around 1900, entirely new innovations such as submarines and airplanes appeared, and were quickly adapted to warfare by 1914. The British HMS ''Dreadnought'' (1906) incorporated so much of the latest technology in weapons, propulsion and armour that it at a stroke made all other battleships obsolescent.

Organization and finance

New financial tools were developed to fund the rapidly increasing costs of warfare, such as popular bond sales and income taxes, and the funding of permanent research centers. Many 19th century innovations were largely invented and promoted by lone individuals with small teams of assistants, such as

David Bushnell David Bushnell (August 30, 1740 – 1824 or 1826), of Westbrook, Connecticut, was an American inventor, a patriot, one of the first American combat engineers, a teacher, and a medical doctor. Bushnell invented the first submarine to be used in ...

and the submarine, John Ericsson and the battleship,

Hiram Maxim Sir Hiram Stevens Maxim (5 February 1840 – 24 November 1916) was an American- British inventor best known as the creator of the first automatic machine gun, the Maxim gun. Maxim held patents on numerous mechanical devices such as hair-curl ...

and the machine gun, and Alfred Nobel and high explosives. By 1900 the military began to realize that they needed to rely much more heavily on large-scale research centers, which needed government funding. They brought in leaders of organized innovation such as Thomas Edison in the U.S. and chemist

Fritz Haber Fritz Haber (; 9 December 186829 January 1934) was a German chemist who received the Nobel Prize in Chemistry in 1918 for his invention of the Haber–Bosch process, a method used in industry to synthesize ammonia from nitrogen gas and hydroge ...

of the

Kaiser Wilhelm Institute The Kaiser Wilhelm Society for the Advancement of Science (German: ''Kaiser-Wilhelm-Gesellschaft zur Förderung der Wissenschaften'') was a German scientific institution established in the German Empire in 1911. Its functions were taken over by ...

in Germany.

Postmodern technology

The postmodern stage of military technology emerged in the 1940s, and one with recognition thanks to the high priority given during the war to scientific and engineering research and development regarding nuclear weapons, radar, jet engines, proximity fuses, advanced submarines, aircraft carriers, and other weapons. The high-priority continues into the 21st century. It involves the military application of advanced scientific research regarding nuclear weapons, jet engines, ballistic and guided missiles, radar, biological warfare, and the use of electronics, computers and software.

Space

During the Cold War, the world's two great superpowers – the

Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...

and the United States of America – spent large proportions of their GDP on developing military technologies. The drive to place objects in orbit stimulated space research and started the Space Race. In 1957, the USSR launched the first artificial satellite, '' Sputnik 1''. By the end of the 1960s, both countries regularly deployed satellites.

Spy satellite A reconnaissance satellite or intelligence satellite (commonly, although unofficially, referred to as a spy satellite) is an Earth observation satellite or communications satellite deployed for military or intelligence applications. The ...

s were used by militaries to take accurate pictures of their rivals' military installations. As time passed the resolution and accuracy of orbital reconnaissance alarmed both sides of the iron curtain. Both the United States and the Soviet Union began to develop

anti-satellite weapon Anti-satellite weapons (ASAT) are space weapons designed to incapacitate or destroy satellites for strategic or tactical purposes. Several nations possess operational ASAT systems. Although no ASAT system has been utilised in warfare, a few ...

s to blind or destroy each other's satellites. Laser weapons, kamikaze style satellites, as well as orbital nuclear explosion were researched with varying levels of success. Spy satellites were, and continue to be, used to monitor the dismantling of military assets in accordance with arms control treaties signed between the two superpowers. To use spy satellites in such a manner is often referred to in treaties as "national technical means of verification". The superpowers developed ballistic missiles to enable them to use nuclear weaponry across great distances. As rocket science developed, the range of missiles increased and intercontinental ballistic missiles (ICBM) were created, which could strike virtually any target on Earth in a timeframe measured in minutes rather than hours or days. To cover large distances ballistic missiles are usually launched into

sub-orbital spaceflight A sub-orbital spaceflight is a spaceflight in which the spacecraft reaches outer space, but its trajectory intersects the atmosphere or surface of the gravitating body from which it was launched, so that it will not complete one orbital re ...

. As soon as intercontinental missiles were developed, military planners began programmes and strategies to counter their effectiveness.

Mobilization

A significant portion of military technology is about transportation, allowing troops and weaponry to be moved from their origins to the front. Land transport has historically been mainly by foot, land vehicles have usually been used as well, from chariots to tanks. When conducting a battle over a body of water, ships are used. There are historically two main categories of ships: those for transporting troops, and those for attacking other ships. Soon after the invention of aeroplanes, military aviation became a significant component of warfare, though usually as a supplementary role. The two main types of military aircraft are bombers, which attack land- or sea-based targets, and fighters, which attack other aircraft. Military vehicles are land combat or transportation vehicles, excluding rail-based, which are designed for or in significant use by military forces. * List of military vehicles * List of armoured fighting vehicles * List of tanks Military aircraft includes any use of aircraft by a country's military, including such areas as transport, training, disaster relief, border patrol, search and rescue, surveillance, surveying, peacekeeping, and (very rarely) aerial warfare. *

List of aircraft The lists of aircraft are sorted in alphabetical order. Further reading The following reference sources, among many others, have been used to compile this list: * * * * * * * * * * * * * * * * * * * * * * * * * * * ...

* List of aircraft weapons Warships are watercraft for combat and transportation in and on seas and oceans. * Submarines * Complex masting and sail systems found on warships during the Age of Sail * List of historical ship and boat types *

List of aircraft carriers This list of aircraft carriers contains aircraft carriers listed alphabetically by name. An aircraft carrier is a warship with a full-length flight deck and facilities for carrying, arming, deploying, and recovering aircraft, that serves a ...

* List of submarine classes

Defence

Fortifications are military constructions and buildings designed for defence in warfare. They range in size and age from the Great Wall of China to a Sangar. * List of fortifications * List of forts

Sensors and communication

Sensors and communication systems are used to detect enemies, coordinate movements of armed forces and guide weaponry. Early systems included flag signaling, telegraph and heliographs. * Laser guidance *

Missile guidance Missile guidance refers to a variety of methods of guiding a missile or a guided bomb to its intended target. The missile's target accuracy is a critical factor for its effectiveness. Guidance systems improve missile accuracy by improving its P ...

* Norden Bombsight * Proximity fuse * Radar *

Satellite guidance A guided bomb (also known as a smart bomb, guided bomb unit, or GBU) is a precision-guided munition designed to achieve a smaller circular error probable (CEP). The creation of precision-guided munitions resulted in the retroactive renaming of ...

in guidance weapons

Future technology

The Defense Advanced Research Projects Agency is an agency of the United States Department of Defense responsible for the development of new technologies for use by the military. DARPA leads the development of military technology in the United States and today, has dozens of ongoing projects; everything from humanoid robots, to bullets that are able to change path before reaching their target. China has a similar agency.

Emerging territory

Current militaries continue to invest in new technologies for the future. Such technologies include cognitive radar , 5g cellular networks, microchips, semiconductors, and large scale analytic engines. Additionally, many militaries seek to improve current laser technology. For example, Israeli Defense Forces utilize laser technology to disable small enemy machinery, but seek to move to more large scale capabilities in the coming years. Militaries across the world continue to perform research on autonomous technologies which allow for increased troop mobility or replacement of live soldiers. Autonomous vehicles and robots are expected to play a role in future conflicts; this has the potential to decrease loss of life in future warfare. Observers of transhumanism note high rates of technological terms in military literature, but low rates for explicitly transhuman-related terms. Today's hybrid style of warfare also calls for investments in information technologies. Increased reliance on computer systems has incentivized nations to push for increased efforts at managing large scale networks and having access to large scale data. New strategies of cyber and hybrid warfare includes, network attacks, media analysis, and media/ grass-roots campaigns on medias such as blog posts

Cyberspace

In 2011, the US Defense Department declared cyberspace a new domain of warfare; since then DARPA has begun a research project known as "Project X" with the goal of creating new technologies that will enable the government to better understand and map the cyber territory. Ultimately giving the Department of Defense the ability to plan and manage large-scale cyber missions across dynamic network environments.