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{{Short description|Industrial sector which manufactures weapons and military technology and equipment}}
{{Use mdy dates|date=September 2021}}
{{Use American English|date = July 2019}}
[[File:F-35, ILA 2018, Schonefeld (1X7A5427).jpg|thumb|right|[[F-35|F-35A Lightning II]] fighter aircraft at the [[ILA Berlin Air Show]] in 2018]]
{{War}}

The '''arms industry''', also known as the '''defense''' (or '''defence''') '''industry''', '''military industry''', or the '''arms trade''', is a global [[industry classification|industry]] which [[manufacturing|manufactures]] and sells [[weapon]]s and other [[military technology]] to a variety of customers, including the [[armed forces]] of [[State (polity)|states]] and civilian individuals and organizations. Products of the arms industry include [[weapon]]s, [[munition]]s, [[weapons platform]]s, [[military communications|communications systems]], and other electronics, and related equipment. The arms industry also provides defense-related services, such as logistical and operational support. As a matter of policy, many governments of [[industrialized countries]] maintain or support a network of organizations, facilities, and resources to produce weapons and equipment for their military forces (and sometimes those of other countries). This is often referred to as a [[defense industrial base]]. Entities involved in arms production for military purposes vary widely, and include [[private sector]] [[Company|commercial firms]], [[State-owned enterprise|state-owned enterprises]] and [[public sector]] organizations, and scientific and academic institutions.<ref>Nicastro, Luke. ''The U.S. Defense Industrial Base: Background and Issues for Congress.'' Congressional Research Service. October 12, 2023. https://crsreports.congress.gov/product/pdf/R/R47751</ref> Such entities perform a wide variety of functions, including [[research and development]], [[engineering]], production, and servicing of [[military]] material, equipment, and facilities. The weapons they produce are often made, maintained, and stored in [[arsenal|arsenals.]]

In some regions of the world, there is a substantial legal trade in [[Firearm|firearms]] for use by individuals (commonly cited purposes include self-defense and hunting/sporting). Illegal [[small arms trade]] occurs in many countries and regions affected by [[political instability]].

==History==
{{no footnotes|section|date=August 2020}}
[[File:Arms Production in Britain during the First World War Q30128.jpg|thumb|[[Coventry Ordnance Works]] producing [[naval artillery]] during World War&nbsp;I]]
During the [[early modern period]], England, France, Sweden, and the Netherlands became self-sufficient in arms production, with diffusion and migration of skilled workers to more peripheral countries such as Portugal and Russia.{{Citation needed|date=April 2024}}

The modern arms industry emerged in the second half of the nineteenth century as a product of the creation and expansion of the first large [[military–industrial complex|military–industrial]] companies. As smaller countries and even newly industrializing countries like Russia and Japan could no longer produce cutting-edge military equipment with their Indigenous capacity-based resources, they increasingly began to contract the manufacturers of military equipment, such as [[battleship]]s, [[artillery|artillery pieces]] and [[rifle]]s to foreign government military entities.{{Citation needed|date=April 2024}} In 1854, the [[British government]] awarded a contract to the [[Elswick Ordnance Company]] to supply the latest loading artillery pieces. This galvanized the private sector into weapons production, with the surplus increasingly exported to foreign countries. [[William Armstrong, 1st Baron Armstrong|William Armstrong]] became one of the first international arms dealers, selling his systems to governments across the world from Brazil to Japan.<ref>{{Cite web|url=https://williamarmstrong.info/about-the-man|title=William Armstrong &#124; About the Man|website=williamarmstrong.info|access-date=July 6, 2021|archive-date=September 30, 2019|archive-url=https://web.archive.org/web/20190930201637/https://williamarmstrong.info/about-the-man/|url-status=live}}</ref>{{Secondary source needed|date=April 2024|reason=The source is too close to the subject}} In 1884, he opened a shipyard at [[Elswick Ordnance Company|Elswick]] to specialize in warship production – at the time, it was the only factory in the world that could build a battleship and arm it completely.<ref>{{cite book |author=Dougan |first=David |url=https://openlibrary.org/works/OL10554159W/The_great_gun-maker?edition=key%3A/books/OL22278344M |title=The Great Gun-Maker: The Story of Lord Armstrong |publisher=[[Sandhill Press]] Ltd. |year=1970 |isbn=0-946098-23-9}}</ref> The factory produced warships for foreign naval forces, including the [[Imperial Japanese Navy]]. Several Armstrong cruisers played an important role in defeating the Russian fleet at the [[Battle of Tsushima]] in 1905.{{Citation needed|date=April 2024}} In the American Civil War in 1861 [[Union (American Civil War)|the North]] had about ten times the manufacturing capacity of the [[economy of the Confederate States of America]]. This advantage over [[Confederacy (American Civil War)|the South]] included the ability to produce (in relatively small numbers) [[Breechloader|breech-loading rifles]] for use against the muzzle-loading [[rifled musket]]s of the South. This began the transition to industrially produced mechanized weapons such as the Gatling gun.<ref>{{cite web |title=Defense Industries – Military History |url=http://www.oxfordbibliographies.com/view/document/obo-9780199791279/obo-9780199791279-0036.xml |url-status=live|archive-url=https://web.archive.org/web/20191207092248/https://www.oxfordbibliographies.com/view/document/obo-9780199791279/obo-9780199791279-0036.xml |archive-date=December 7, 2019 |access-date=2015-11-03 |website=[[Oxford Bibliographies]]}}</ref>

This industrial innovation in the defense industry was adopted by [[Prussia]] in its 1864, 1866, and 1870–71 defeats of Denmark, Austria, and, France respectively. By this time the machine gun had begun entering arsenals. The first examples of its effectiveness were in 1899 during the [[Boer war|Boer War]] and in 1905 during the [[Russo-Japanese War]]. However, Germany led the innovation of weapons and this advantage in the [[weapons of World War I]] nearly defeated the allies.{{Citation needed|date=April 2024}} 

[[File:Ministry of Information First World War Official Collection Q30049.jpg|thumb|Stacks of shells in the [[National Shell Filling Factory, Chilwell]] during World War I]]

In 1885, France decided to capitalize on this increasingly lucrative trade and repealed its ban on weapon exports. The regulatory framework for the period up to the [[First World War]] was characterized by a [[laissez-faire]] policy that placed little obstruction in the way of weapons exports. Due to the carnage of World War I, arms traders began to be regarded with odium as "merchants of death" and were accused of having instigated and perpetuated the war for earning their profits from weapons sales. An inquiry into these allegations in Britain failed to find evidence to support them. However, the sea change in attitude about war more generally meant that governments began to control and regulate the trade themselves.{{Citation needed|date=April 2024}} The volume of the arms trade greatly increased during the 20th century, and it began to be used as a political tool, especially during the [[Cold War]] when the United States and the USSR supplied weapons to their proxies across the world, particularly [[Third World|third world countries]] (see [[Nixon Doctrine]]).<ref>{{cite book|url=https://books.google.com/books?id=uvGRBE1QxBUC|title=The International Arms Trade|author1=Stohl, Rachel|author2=Grillot, Suzette|year=2013|publisher=Wiley Press|isbn=9780745654188|access-date=2013-02-07|archive-date=January 21, 2023|archive-url=https://web.archive.org/web/20230121054635/https://books.google.com/books?id=uvGRBE1QxBUC|url-status=live}}</ref>

==Sectors==

===Land-based weapons===
[[File:British Mark V (male) tank.jpg|alt=British Mark V Tank|thumb|British [[Mark V tank]]]]
This category includes everything from [[SALW|light arms]] to [[heavy artillery]], and the majority of producers are small. Many are located in third-world countries. International trade in [[handgun]]s, [[machine gun]]s, [[tank]]s, [[armored personnel carrier]]s, and other relatively inexpensive weapons is substantial. There is relatively little regulation at the international level, and as a result, many weapons fall into the hands of organized crime, rebel forces, terrorists, or regimes under sanctions.<ref name="autogenerated1">{{cite web |title=International Defense Industry |url=http://www.fpa.org/newsletter_info2584/newsletter_info.htm |url-status=dead |archive-url=https://web.archive.org/web/20110726062433/http://www.fpa.org/newsletter_info2584/newsletter_info.htm |archive-date=2011-07-26 |access-date=2007-05-20 |website=[[Foreign Policy Association]] |type=Newsletter}}</ref>

====Small arms====
{{main|Small arms trade|Small arms and light weapons|List of most-produced firearms}}
[[File:AK47.jpg|thumb|right|upright=1.35|The [[AK-47|AK]] [[Kalashnikov rifle|series]] of weapons have been produced in greater numbers than any other [[firearm]] and have been used in conflicts all over the world.]]
One billion firearms were in global circulation in 2017; of those, 857 million (85%) were possessed by civilians, 133 million (13%) were possessed by national militaries, and 23 million (2%) belonged to law enforcement agencies.<ref>{{Cite web |title=Global Firearms Holdings |url=https://www.smallarmssurvey.org/database/global-firearms-holdings |access-date=2024-08-21 |website=www.smallarmssurvey.org |language=en}}</ref> 1,135 companies based in more than 98 countries manufactured small arms as well as their various components and ammunition as of 2003.<ref>{{cite web |author1=Debbie Hillier |author2=Brian Wood |year=2003 |title=Shattered Lives – the case for tough international arms control |url=http://controlarms.org/wordpress/wp-content/uploads/2011/02/Shattered-lives-the-case-for-tough-international-arms-control.pdf |url-status=dead |archive-url=https://web.archive.org/web/20110723081459/http://controlarms.org/wordpress/wp-content/uploads/2011/02/Shattered-lives-the-case-for-tough-international-arms-control.pdf |archive-date=2011-07-23 |access-date=2009-03-28 |publisher=[[Control Arms Campaign]] |page=19}}</ref>

One billion firearms were in global circulation in 2017; of those, 857 million (85%) were possessed by civilians, 133 million (13%) were possessed by national militaries, and 23 million (2%) belonged to law enforcement agencies.<ref>{{Cite web |title=Global Firearms Holdings |url=https://www.smallarmssurvey.org/database/global-firearms-holdings |access-date=2024-08-21 |website=www.smallarmssurvey.org |language=en}}</ref>

===Aerospace systems===
{{Main|Aerospace manufacturer}}

Encompassing military aircraft (both land-based and [[naval aviation]]), conventional missiles, and [[military satellites]], this is the most technologically advanced sector of the market. It is also the least competitive from an economic standpoint, with a handful of companies dominating the entire market. The top clients and major producers are virtually all located in the [[western world]] and Russia, with the United States easily in the first place. Prominent aerospace firms include [[Rolls-Royce Holdings|Rolls-Royce]], [[BAE Systems]], [[Saab AB]], [[Dassault Aviation]], [[Sukhoi]], [[Mikoyan]], [[EADS]], [[Leonardo S.p.A.|Leonardo]], [[Thales Group]], [[Lockheed Martin]], [[Northrop Grumman]], [[RTX Corporation]], and [[Boeing]]. There are also several [[multinational corporation|multinational]] consortia mostly involved in the manufacturing of [[fighter jet]]s, such as the [[Eurofighter]]. The largest military contract in history, signed in October 2001, involved the development of the [[Joint Strike Fighter]].<ref name=autogenerated1 />

=== Naval systems ===
Several of the world's [[great power]]s maintain substantial [[naval force]]s to provide a global presence, with the largest nations possessing [[aircraft carrier]]s, [[nuclear submarine]]s and advanced [[Anti-aircraft warfare|anti-air defense systems]]. The vast majority of military ships are conventionally powered, but some are [[nuclear marine propulsion|nuclear-powered]]. There is also a large global market in second-hand naval vessels, generally purchased by [[developing countries]] from [[Western world|Western]] governments.<ref name=autogenerated1 />

=== Cybersecurity ===
{{Main|Cyber-arms industry|Computer security|Cyberwarfare}}

The cybersecurity industry is expected to be of increasing importance to defense, intelligence, and homeland security agencies.<ref>{{Cite web |title=The defence industry – a changing game? |url=http://www.nato.int/docu/review/2013/Industry/EN/index.htm |url-status=dead |archive-url=https://web.archive.org/web/20160914205918/http://www.nato.int/docu/review/2013/Industry/EN/index.htm |archive-date=September 14, 2016 |access-date=2021-07-25 |website=[[NATO Review]]}}</ref><ref name="auto1">{{cite web |date=5 May 2015 |title=Cyber security for the defence industry |url=http://www.cybersecurity-review.com/industry-perspective/cyber-security-for-the-defence-industry |url-status=live |archive-url=https://web.archive.org/web/20151208180845/http://www.cybersecurity-review.com/industry-perspective/cyber-security-for-the-defence-industry |archive-date=December 8, 2015 |access-date=2015-11-02 |website=[[Cybersecurity Review]]}}</ref>{{Better source needed|reason=The current source is insufficiently reliable ([[WP:NOTRS]]).|date=April 2024}}

==International arms transfers==
[[File:Global weapons sales 1950-2006.jpg|thumb|Global weapons sales from 1950 to 2006]]

=== Over time ===

==== 2010–2014 ====
[[File:Biggest arms sales 2013.png|thumb|Share of arms sales by country in 2013. Source is provided by [[SIPRI]].<ref>{{Cite web |last=Wezeman |first=Pieter D. |date=7 December 2020 |title=Arms production |url=http://www.sipri.org/research/armaments/production/recent-trends-in-arms-industry |url-status=live |archive-url=https://web.archive.org/web/20141217154030/http://www.sipri.org/research/armaments/production/recent-trends-in-arms-industry |archive-date=December 17, 2014 |access-date=25 July 2021 |website=SIPRI}}</ref>]]According to research institute [[SIPRI]], the volume of international transfers of major weapons in 2010–14 was 16 percent higher than in 2005–2009. The five biggest exporters in 2010–2014 were the United States, Russia, China, Germany, and France, and the five biggest importers were India, Saudi Arabia, China, the United Arab Emirates, and Pakistan. The flow of arms to the Middle East increased by 87 percent between 2009–13 and 2014–18, while there was a decrease in flows to all other regions: Africa, the Americas, Asia and Oceania, and Europe.<ref name="sipri.org">{{Cite web|last1=Fleurant|first1=Aude|last2=Wezeman|first2=Pieter D.|last3=Wezeman|first3=Siemon T.|last4=Tian|first4=Nan|last5=Kuimova|first5=Alexandra|date=March 2019|title=TRENDS IN INTERNATIONAL ARMS TRANSFERS, 2018|url=https://www.sipri.org/sites/default/files/2019-03/fs_1903_at_2018.pdf|access-date=2021-07-25|website=sipri.org|archive-date=March 15, 2019|archive-url=https://web.archive.org/web/20190315230238/https://www.sipri.org/sites/default/files/2019-03/fs_1903_at_2018.pdf|url-status=live}}</ref>

==== 2014–2018 ====
SIPRI has identified 67 countries as exporters of major weapons in 2014–18. The top 5 exporters during the period were responsible for 75 percent of all arms exports. The composition of the five largest exporters of arms changed between 2014 and 2018 and remained unchanged compared to 2009–13, although their combined total exports of major arms were 10 percent higher. In 2014–18, significant increases in arms exports from the US, France and Germany were seen, while Chinese exports rose marginally and Russian exports decreased.<ref name="sipri.org" />

In 2014–18, 155 countries (about three-quarters of all countries) imported major weapons. The top 5 recipients accounted for 33 percent of the total arms imports during the period. The top five arms importers – Saudi Arabia, India, Egypt, Australia, and Algeria – accounted for 35 percent of total arms imports in 2014–18. Of these, Saudi Arabia and India were among the top five importers in both 2009–13 and 2014–18.

In 2014–18, the volume of major arms international transfers was 7.8 percent higher than in 2009–13 and 23 percent higher than that in 2004–08. The largest arms importer was Saudi Arabia, importing arms primarily from the United States, United Kingdom, and France. Between 2009–13 and 2014–18, the flow of arms to the Middle East increased by 87 percent. Also including India, Egypt, Australia, and Algeria, the top five importers received 35 percent of the total arms imports, during 2014–18. The five largest exporters were the United States, Russia, France, Germany and China.<ref name="sipri.org" />

==== Post-2018 ====

Imports of major arms by states in Europe increased by 155 per cent between 2015–19 and 2020–24, while the global volume of international arms transfers decreased marginally, by 0.6 per cent. The five largest arms importers in 2020–24 were Ukraine, India, Qatar,  Saudi Arabia and Pakistan, while the five largest arms exporters were the United States, France, Russia, China and Germany.<ref>{{Cite report |url=https://www.sipri.org/publications/2025/sipri-fact-sheets/trends-international-arms-transfers-2024 |title=Trends in International Arms Transfers, 2024 |date=March 2025 |publisher=SIPRI |language=en}}</ref>

=== World's largest arms exporters ===<!--linked from [[Template:Lists of countries]]-->
[[File:Top arms exporters by country.webp|thumb|Top arms exporters by country in Trend-Indicator Values (TIV)]]
[[File:U.S. arms exports by year.webp|thumb|U.S. arms exports by year. The U.S. exported $238 billion in arms in 2023.<ref>{{cite web |date=January 29, 2024 |title=US Arms Exports Hit Record High in Fiscal 2023 |url=https://www.voanews.com/a/us-arms-exports-hit-record-high-in-fiscal-2023/7462237.html |website=[[Voice of America News]]}}</ref>]] The following are estimates from the [[SIPRI|Stockholm International Peace Research Institute]]'s Arms Transfers Database.<ref>{{Cite report |url=https://www.sipri.org/publications/2025/sipri-fact-sheets/trends-international-arms-transfers-2024 |title=Trends in International Arms Transfers, 2024 |date=March 2025 |publisher=SIPRI |language=en}}</ref> 

{| class="wikitable sortable"
|-
!2020-2024 <br />rank
!Exporter

!data-sort-type="number"|Share of global arms exports<br />(%)
|-
|1 ||{{US}}|| 43
|-
|2 ||{{FRA}}|| 9.6
|-
|3 ||{{RUS}}|| 7.8
|-
|4 ||{{CHN}} || 5.9
|-
|5 ||{{GER}}|| 5.6
|-
|6 ||{{ITA}}|| 4.8
|-
|7 ||{{UK}}|| 3.6
|-
|8 ||{{ISR}}|| 3.1
|-
|9 ||{{ESP}}|| 3.0
|-
|10 ||{{ROK}}|| 2.2
|}
[[File:Sgraffite marchand d' Armes.jpg|thumb|upright=1.35|[[Sgraffito]] at the Lambert Sevart weapons factory, in [[Liège|Liege]] (Belgium) (early 20th century)]]

While Russian, Chinese and German arms exports fell from 2015-2019, US and French arms exports rose. The top 25 arms exporters accounted for 98 per cent of the world’s arms exports in 2020–24. States in North America and Europe together accounted for 87 per cent of all arms exports in the period. The five largest exporters in Western Europe supplied around one quarter of total global arms exports in 2020–24.<ref>{{Cite journal |last1=Wezeman |first1=Simon T. |last2=Djokic |first2=Katarina |last3=George |first3=Mathew| last4=Hussain|first4=Zain |last5= Wezeman|first5= Pieter D.|date=May 2024 |title=6. International Arms Transfers |url=https://www.sipri.org/yearbook/2024 |journal=SIPRI }}</ref>

===World's largest arms exporters since 1950===
SIPRI uses the "trend-indicator values" (TIV). These are based on the known unit production costs of weapons and represent the transfer of military resources rather than the financial value of the transfer.<ref>{{cite web |date=12 February 2024 |title=SIPRI Arms Transfers Database |url=https://www.sipri.org/databases/armstransfers |website=SIPRI}}</ref>

{| class="wikitable sortable"
|-
!1950–2022<br />rank
!Supplier
!data-sort-type="number"|Arms export<br />(in billion TIV)
|-
|1 ||{{US}}|| 729,161
|-
|2 ||{{USSR}} (1950-1991)|| 450,786
|-
|3 ||{{RUS}} (1992-present)|| 155,926
|-
|4 ||{{UK}}|| 144,569
|-
|5 ||{{FRA}}|| 136,347
|-
|6 ||{{DEU}}|| 90,701
|-
|7 ||{{CHN}}|| 61,283
|-
|8 ||{{ITA}}|| 37,328
|-
|9 ||{{CSK}} (1950-1992)|| 31,066
|-
|10 ||{{NED}}|| 25,632
|}

=== World's largest arms importers ===<!--linked from [[Template:Lists of countries]]-->

Arms import rankings fluctuate heavily as countries enter and exit wars. Accordingly, 5-year moving averages present a much more accurate picture of import volume, free from yearly fluctuations.<ref>{{Cite report |url=https://www.sipri.org/publications/2025/sipri-fact-sheets/trends-international-arms-transfers-2024 |title=Trends in International Arms Transfers, 2024 |date=March 2025 |publisher=SIPRI |language=en}}</ref>

{| class="wikitable sortable"
|-
!2020-2024 <br />rank
!Importer

!data-sort-type="number"|Share of global arms imports<br />(in %)
|-
|1 ||{{UKR}}|| 8.8
|-
|2 ||{{IND}}|| 8.3
|-
|3 ||{{QAT}}|| 6.8
|-
|4 ||{{SAU}}|| 6.8
|-
|5 ||{{PAK}}|| 4.6
|-
|6 ||{{JPN}}|| 3.9
|-
|7 ||{{AUS}}|| 3.5
|-
|8 ||{{EGY}}|| 3.3
|-
|9 ||{{US}}|| 3.1
|-
|10 ||{{KUW}}|| 2.9
|}

In the period from 2020 to 2024, the top five arms importers together received 35.3 per cent of all arms imports. States in Asia and Oceania accounted for 33 per cent of all arms imports in 2020–24, followed by Europe (28 per cent), the Middle East (27 per cent), the Americas (6.2 per cent) and Africa (4.5 per cent).<ref>{{Cite journal |last1=Wezeman |first1=Simon T. |last2=Djokic |first2=Katarina |last3=George |first3=Mathew| last4=Hussain|first4=Zain |last5= Wezeman|first5= Pieter D.|date=May 2024 |title=6. International Arms Transfers |url=https://www.sipri.org/yearbook/2024 |journal=SIPRI }}</ref>

=== List of major weapon manufacturers ===
{{Main list|List of modern armament manufacturers|List of defense contractors}}

This is a list of the world's largest arms manufacturers and other military service companies who profit the most from the [[war economy]], their origin is shown as well. The information is based on a list published by the [[Stockholm International Peace Research Institute]] for 2023.<ref>{{Cite web |title=The SIPRI Top 100 arms-producing and military services companies in the world, 2023 |url=https://www.sipri.org/visualizations/2024/sipri-top-100-arms-producing-and-military-services-companies-world-2023|access-date=2025-01-21 |website=SIPRI |language=en}}</ref>

{| class="wikitable sortable" style="text-align:left;"
|-
! | 2023 rank
! | Company name
! | Arms revenue<br />(US$ billions)
! % of total revenue<br /> from arms
|-
| 1
| {{flagicon|USA}} [[Lockheed Martin]]
| 60.81
| 90
|-
| 2
| {{flagicon|USA}} [[RTX Corporation]]
| 40.66
| 59
|-
| 3
| {{flagicon|USA}} [[Northrop Grumman]]
| 35.57
| 90.5
|-
| 4
| {{flagicon|USA}} [[Boeing]]
| 31.10
| 40
|-
| 5
| {{flagicon|USA}} [[General Dynamics]]
| 30.20
| 71.4
|-
| 6
| {{flagicon|UK}} [[BAE Systems]]
| 29.81
| 98.2
|-
| 7
| {{flagicon|Russia}} [[Rostec]]
| 21.73
| 65
|-
| 8
| {{flagicon|China}} [[Aviation Industry Corporation of China]]
| 20.85
| 25
|-
| 9
| {{flagicon|China}} [[NORINCO]]
| 20.56
| 26.8
|-
| 10
| {{flagicon|China}} [[China Electronics Technology Group Corporation]]
| 16.05
| 28.7
|-
| 11
| {{flagicon|USA}} [[L3Harris|L3Harris Technologies]]
| 14.76
| 76
|-
| 12
| {{flagicon|European Union}} [[Airbus]]
| 12.89
| 18.2
|-
| 13
| {{flagicon|Italy}} [[Leonardo (company)|Leonardo]]
| 12.39
| 75
|-
| 14
| {{flagicon|China}} [[China Aerospace Science and Industry Corporation]]
| 12.35
| 30
|-
| 15
| {{flagicon|China}} [[China State Shipbuilding Corporation]]
| 11.48
| 23.5
|}

==Economics of the arms industry==
===[[Market failures]]===
{{Blockquote |text=... in all countries, markets for military goods work poorly. This is to a large extent independent of the constitution of the state and the social and economic system. In all countries, whether ownership is private or collective, and whether rulers are democratic or authoritarian, the agents on each side of the defense market are powerful and well connected. On one side a senior minister manages a government [[monopsony]]: there is only one significant customer for such items as heavy artillery, aircraft, and battleships. On the other side is a charmed circle of big defense contractors. A few large-scale corporations supply such weapons; their ability to squeeze money out of government is augmented by the fact that they are too important for production, employment, and national security for the government to let them fail. As a direct result, defense markets everywhere are notorious for cost overruns, delayed deliveries, quality shortfalls, subsidies, and kickbacks. It would be a mistake, however, to conclude that defense markets everywhere are uniformly the same. |author=Harrison & Markevich<ref name="harrison-harrison-markevich" />{{rp|156}}}}

A [[free market]] for weapons cannot exist within a [[State (polity) | state]] because the market is necessarily a [[monopsony]] where there is a single buyer and a small number of suppliers.<ref name="gansler industry" />{{rp|5, 30-31, 69}} The high cost of weapons together with the lack of a free market makes pricing controversial and allegations of corruption and inefficiency common.<ref name="gansler industry" />{{rp|1}} Furthermore, the complexity and specialization involved in weapons together with [[barriers to entry]] created by the [[government procurement]] process frequently result in monopolistic situations where suppliers are able to charge high prices and dictate long delivery times.<ref name="gansler industry" />{{rp|6}} The cyclic nature of the business has driven consolidation which further impedes pricing.<ref name="gansler industry" />{{rp|11}}

While [[profiteering]] by the arms industry is frequently blamed for the costs of defense procurement, a comparison between commercial and defense companies found little difference in profitability. Rather, cost overruns appear to be caused by a variety of complicated factors inherent in the structure of military procurement including needless levels of technological sophistication, a bidding process that rewards underbidding, a profit formula that rewards inefficiency by paying contractors a percentage of the total cost, procurement organization structure that hampers decision-making, and [[concurrent engineering]] that requires rework of already produced equipment.<ref name="rosen-rosen" />{{rp|18-19}} [[Technological determinism]] may arise where competition between weapons systems drives relentless development of new weapons, not because they are needed, but because they are possible.<ref name="roland" />{{rp|32-33}} Pressure on the US government has resulted in an inefficient procurement system where the government negotiates with the objective of low contractor profit rather than low overall cost.<ref name="gansler industry" />

Poorly managed procurement during the [[American Civil War]] resulted in generals and states competing against each other when buying arms which resulted in a seller’s market where prices were ten times higher than before the war and the goods were sometimes unusable.<ref name="cooling-molander" />{{rp|178}} Similar problems occurred at the start of WWII before procurement was centralized to the [[War Production Board]] to prevent useless competition.<ref name="cooling-beaumont" />{{rp|119}}

Bids for government contracts may involve collusion among the bidders to extract exorbitant profits.<ref name="cooling-trotter" />{{rp|94}} High profitability of companies involved in the manufacture of armor plate for ships resulting from their anti-competitive tactics around the year 1900 lead to much public controversy. This culminated in the [[Budget and Accounting Act | Budget and Accounting Act of 1921]] to limit the sort of abuses perpetrated by the nickel-steel cartel.<ref name="cooling-lischka" />{{rp|56}} The period leading up to WWI saw Navy Department funds being used as a source of federal [[Spoils system|patronage]].<ref name="cooling-ferrell" />{{rp|60}}

A continuing community of interests between the military and industry creates the potential for an [[old boy network]] in control of weapons procurement that threatens the public interest.<ref name="pursell-proxmire" />{{rp|256-257}} This may involve a [[Revolving door (politics) | revolving door]] dynamic were personnel frequently change their employment between government and private industry, thus making their allegiance unclear.<ref name="cooling-molander" />{{rp|179}}

===International trade===
[[Multinational corporations]] form a global network stitched together by reciprocal agreements and interlocking ownership that may pursue objectives contrary to that of the nations whose resources they employ.<ref name="cooling-trotter" />{{rp|94}}<ref name="gansler conversion" />{{rp|43}} For example, the English arms maker [[Vickers]] supplied field guns to Germany prior to 1914. These guns were then used against British troops during WWI.<ref name="cooling-trotter" />{{rp|95}}

Furthermore, a tradeoff exists between procuring the best specialized parts and materials from international businesses, or attempting to achieve [[autarky]] by developing purely domestic substitutes. During the [[Gulf War]], a shortage of advanced ceramic components for [[Tomahawk (missile family) | Tomahawk missiles]] occurred. This was caused by a ceramics manufacturer located in the US being pressured by its Japanese parent company, which was in turn pressured by [[Japan Socialist Party|Socialist]] members of the [[National Diet]] to withhold support for the war.<ref name="gansler conversion" />{{rp|43-44}}

==Arms control==
{{Main|Arms control}}
Arms control refers to international restrictions upon the development, production, stockpiling, proliferation, and usage of small arms, conventional weapons, and [[Weapon of mass destruction|weapons of mass destruction]].<ref>{{cite web |author=Kolodkin |first=Barry |title=What Is Arms Control? |url=http://usforeignpolicy.about.com/od/defense/a/what-is-arms-control.htm |url-status=dead |archive-url=https://web.archive.org/web/20160903122015/http://usforeignpolicy.about.com/od/defense/a/what-is-arms-control.htm |archive-date=September 3, 2016 |access-date=13 May 2012 |work=[[About. com]] |publisher=The New York Times Company |format=Article}}</ref> It is typically exercised through the use of [[diplomacy]], which seeks to persuade [[government]]s to accept such limitations through agreements and [[Treaty|treaties]], although it may also be forced upon non-consenting governments.

===Notable international arms control treaties===
* [[Arms Trade Treaty]], concluded in 2013, entered into force on 24 December 2014.<ref>{{Cite web |last=Delgado |first=Andrea |date=23 February 2015 |title=Explainer: what is the Arms Trade Treaty? |url=http://theconversation.com/explainer-what-is-the-arms-trade-treaty-37673 |access-date=25 July 2021 |website=The Conversation |archive-date=April 29, 2021 |archive-url=https://web.archive.org/web/20210429043633/https://theconversation.com/explainer-what-is-the-arms-trade-treaty-37673 |url-status=live }}</ref>
* [[Biological Weapons Convention]], signed in 1972, entered into force during 1975
* [[Chemical Weapons Convention]], signed in 1993, entered into force during 1997
* [[Geneva Protocol]] on biological and chemical weapons during 1925
* [[Missile Technology Control Regime]] (MTCR), 1987
* [[Ottawa Treaty]] on anti-personnel land mines, signed in 1997, entered into force during 1999
* [[Outer Space Treaty]], signed and entered into force during 1967
* [[START treaty (2010)|New START Treaty]], signed by Russia and the United States in April 2010, entered into force in February 2011
* [[Wassenaar Arrangement]], established on 12 July 1996

==See also==
{{Commons category|Military industry}}
{{columns-list|colwidth=22em|
* [[Arms deal (disambiguation)]]
* [[Arms embargo]]
* [[Arms race]]
* [[Arms trafficking]]
* [[Guns versus butter model]]
* [[History of military technology]]
* [[Military Keynesianism]]
* [[Offset agreement]]
* [[Peace and conflict studies]]
* [[Peace dividend]]
* [[Military Keynesianism#Permanent war economy|Permanent war economy]]
* [[Private military company]]
* [[Productive capacity]]
* [[Torture trade]]
}}

==References==
<references>
<ref name="harrison-harrison-markevich">
{{cite book |last1=Harrison |first1=Mark |last2=Markevich |first2=Andrei |date=2008 |editor-last=Harrison |editor-first=Mark |title=Guns and Rubles: The Defense Industry in the Stalinist State |publisher=Yale University Press |pages=156-179 |chapter=Chapter 6: The Soviet Market for Weapons |isbn=978-0-300-12524-5 |url=https://www.google.com/books/edition/Guns_and_Rubles/LxhO5UaI_bAC}}
</ref>
<ref name="gansler industry">
{{cite book |last=Gansler |first=Jacques |date=1980 |title=The Defense Industry |publisher=The MIT Press |isbn=0-262-07078-2 |url=https://archive.org/details/defenseindustry00gans}}
</ref>
<ref name="rosen-rosen">
{{cite book |last=Rosen |first=Steven |date=1973 |editor-last=Rosen |editor-first=Steven |title=Testing the Theory of the Military-Industrial Complex |publisher=Lexington Books |pages=1-26 |chapter=Chapter 1: Testing the Theory of the Military-Industrial Complex |url=https://archive.org/details/testingtheoryofm0000rose |isbn=0-669-84871-9}}
</ref>
<ref name="cooling-molander">
{{cite book |last=Molander |first=Earl |date=1977 |editor-last=Cooling |editor-first=Benjamin |title=War, Business, and American Society |publisher=Kennikat Press |pages=171-187 |chapter=Chapter 12: Historical Antecedents of Military-Industrial Criticism |isbn=0-8046-9156-8 |url=https://archive.org/details/warbusinessameri0000unse}}
</ref>
<ref name="cooling-beaumont">
{{cite book |last=Beaumont |first=Roger |date=1977 |editor-last=Cooling |editor-first=Benjamin |title=War, Business, and American Society |publisher=Kennikat Press |pages=118-132 |chapter=Chapter 8: Quantum Increase; The MIC in the Second World War |isbn=0-8046-9156-8 |url=https://archive.org/details/warbusinessameri0000unse}}
</ref>
<ref name="cooling-trotter">
{{cite book |last=Trotter |first=Anne |date=1977 |editor-last=Cooling |editor-first=Benjamin |title=War, Business, and American Society |publisher=Kennikat Press |pages=93-104 |chapter=Chapter 6: Development of the “Merchants of Death Theory” |isbn=0-8046-9156-8 |url=https://archive.org/details/warbusinessameri0000unse}}
</ref>
<ref name="cooling-lischka">
{{cite book |last=Lischka |first=Johannes |date=1977 |editor-last=Cooling |editor-first=Benjamin |title=War, Business, and American Society |publisher=Kennikat Press |pages=43-58 |chapter=Chapter 3: Armor Plate: Nickel and Steel, Monopoly and Profit |isbn=0-8046-9156-8 |url=https://archive.org/details/warbusinessameri0000unse}}
</ref>
<ref name="cooling-ferrell">
{{cite book |last=Ferrell |first=Henry |date=1977 |editor-last=Cooling |editor-first=Benjamin |title=War, Business, and American Society |publisher=Kennikat Press |pages=59-72 |chapter=Chapter 4: Regional Rivalries, Congress, and MIC; The Norfolk and Charlestown Navy Yards, 1913-1920 |isbn=0-8046-9156-8 |url=https://archive.org/details/warbusinessameri0000unse}}
</ref>
<ref name="pursell-proxmire">
{{cite book |last=Proxmire |first=William |date=1972 |editor-last=Pursell |editor-first=Carroll |title=The Military-Industrial Complex |publisher=Harper & Rowe |pages=253-263 |chapter=Chapter 17: Retired High-Ranking Military Officers  |url=https://archive.org/details/militaryindustri0000purs |sbn=06-045296-X}}
</ref>
<ref name="gansler conversion">
{{cite book |last=Gansler |first=Jacques |date=1995 |title=Defense Conversion: Transforming the Arsenal of Democracy |publisher=The MIT Press |isbn=0-262-07166-5 |url=https://archive.org/details/defenseconversio0000gans_j3w4}}
</ref>
<ref name="roland">
{{cite book |last1=Roland |first1=Alex |title=Delta of Power: The Military-Industrial Complex |date=2021 |publisher=[[Johns Hopkins University Press]] |location=Baltimore |isbn=9781421441818 |url=https://www.google.com/books/edition/Delta_of_Power/XT04EAAAQBAJ?hl=en&gbpv=0}}
</ref>
</references>

{{Military industries of the world}}
{{Industries}}
{{Weapons}}
{{Authority control}}

[[Category:Arms industry| ]]
[[Category:Arms control]]
[[Category:Arms trafficking]]
[[Category:Industries (economics)]]
[[Category:Military comparisons lists of countries]]
[[Category:Weapons trade]]