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The arms industry is a global business that manufactures weapons and military technology and equipment. It consists of commercial industry involved in research and development, production, and the service of military material, equipment, and facilities. Arms producing companies, also referred to as defense contractors or military industry, produce arms mainly for the armed forces of states. Departments of government also operate in the arms industry, buying and selling weapons, munitions and other military items. Products include guns, ammunition, missiles, military aircraft, military vehicles, ships, electronic systems, and more. The arms industry also provides other logistical and operational support. It is estimated that yearly, over 1.5 trillion United States dollars are spent on military expenditures worldwide (2.7% of World GDP).〔(World Military Spending ). www.globalissues.org. Retrieved on 2012-05-09.〕 This represents a decline from 1990 when military expenditures made up 4% of world GDP. Part of this goes to the procurement of military hardware and services from the military industry. The combined arms sales of the top 100 largest arms producing companies amounted to an estimated $395 billion in 2012 according to Stockholm International Peace Research Institute (SIPRI).〔(Stockholm International Peace Research Institute ). Sipri.org. Retrieved on 2012-05-09.〕 In 2004 over $30 billion were spent in the international arms trade (a figure that excludes domestic sales of arms).〔(Arms trade key statistics ). BBC News (2005-09-15). Retrieved on 2012-05-09.〕 According to SIPRI, the volume of international transfers of major weapons in 2010–14 was 16 per cent higher than in 2005–2009. The five biggest exporters in 2010–14 were the United States, Russia, China, Germany and France, and the five biggest importers were India, Saudi Arabia, China, the United Arab Emirates (UAE) and Pakistan. The arms trade has also been one of the sectors impacted by the credit crunch, with total deal value in the market halving from US$32.9 billion to US$14.3 billion in 2008.〔(Defence sector deal-making is finding itself in a war zone, warns report. 12 March 2009. BriskFox ). Briskfox.com. Retrieved on 2012-05-09.〕 Many industrialized countries have a domestic arms industry to supply their own military forces. Some countries also have a substantial legal or illegal domestic trade in weapons for use by its citizens. An illegal trade in small arms is prevalent in many countries and regions affected by political instability. The Small Arms Survey estimates 875 million small arms in circulation worldwide, produced by more than 1,000 companies from nearly 100 countries. Contracts to supply a given country's military are awarded by the government, making arms contracts of substantial political importance. The link between politics and the arms trade can result in the development of what U.S. President Dwight D. Eisenhower described as a military-industrial complex, where the armed forces, commerce, and politics become closely linked, similarly to the European defence procurement. Various corporations, some publicly held, others private, bid for these contracts, which are often worth many billions of dollars. Sometimes, such as the contract for the new Joint Strike Fighter, a competitive tendering process takes place, where the decision is made on the merits of the design submitted by the companies involved. Other times, no bidding or competition takes place. ==History== Trade in arms and technological diffusion is as old as the history of war itself. During the early modern period, France, England, Netherlands and some states in Germany became self-sufficient in arms production, with diffusion and migration of skilled workers to more peripheral countries such as Portugal and Russia. 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 companies. As smaller countries (and even newly industrializing countries like Russia and Japan) could no longer produce cutting-edge military equipment with their indigenous resources and capacity, they increasingly began to contract the manufacture of military equipment, such as battleships, artillery pieces and rifles to foreign firms. In 1854, the British government awarded a contract to the Elswick Ordnance Company of industrialist William Armstrong for the supply of his latest breech loading rifled artillery pieces. This galvanised the private sector into weapons production, with the surplus being increasingly exported to foreign countries. Armstrong became one of the first international arms dealers, selling his weapon systems to governments across the world from Brazil to Japan. In 1884, he opened a shipyard at Elswick to specialise in warship production—at the time, it was the only factory in the world that could build a battleship and arm it completely. The factory produced warships for many navies, including the Imperial Japanese Navy. Several Armstrong cruisers played an important role in defeating the Russian fleet at the Battle of Tsushima in 1905. In the American Civil War in 1861 the north had a distinct advantage over the south as it relied on using the breech-loading rifle against the muskets of the south. This began the transition to industrially produced mechanised weapons such as the Gatling gun. This industrial innovation in the defence industry was adopted by Prussia in 1866 & 1870-71 in its defeat of Austria and France respectively. By this time the machine gun had begun entering into the militaries. The first example of its effectiveness was in 1899 during the Boer War and in 1905 during the Russo-Japanese War. Despite the Japanese use of machine guns they eventually lost the war. However, Germany were leaders in innovation of weapons and used this innovation nearly defeating the allies in World War I. In 1885, France decided to capitalize on this increasingly lucrative form of 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 in order to maximise their profits from arms 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. 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 where the United States and the USSR supplied weapons to their proxies across the world, particularly third world countries (see Nixon Doctrine). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Arms industry」の詳細全文を読む スポンサード リンク
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