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The Royal Navy established the West Africa Squadron (or Preventative Squadron) at substantial expense in 1808 after Parliament passed the Slave Trade Act of 1807. The squadron's task was to suppress the Atlantic slave trade by patrolling the coast of West Africa.〔(【引用サイトリンク】 publisher = Royal Naval Museum )〕 With a home base at Portsmouth, it began with two small ships, the 32-gun fifth-rate frigate and the . At the height of its operations, the squadron employed a sixth of the Royal Navy fleet and marines. Between 1808 and 1860 the West Africa Squadron captured 1,600 slave ships and freed 150,000 Africans.〔 == History == Commodore Sir George Ralph Collier, with the 36-gun as his flagship, was the first Commodore of the West Africa Squadron. On 19 September 1818, the navy sent him to the Gulf of Guinea with the orders, “You are to use every means in your power to prevent a continuance of the traffic in slaves.” However, he had only six ships with which to patrol over of coast. He served from 1818 to 1821. In 1819 the Royal Navy created a naval station in West Africa at a captured slaving port that the British renamed Freetown. This would become the capital of the first British colony in West Africa, Sierra Leone. Most of the slaves the squadron freed would choose to settle in Sierra Leone as they would not have to fear being re-enslaved, a danger in any other part of Africa.〔 From 1821, the squadron also used Ascension Island as a supply depot,〔(【引用サイトリンク】 publisher = Peter Davis )〕 before this moved to Cape Town in 1832.〔(【引用サイトリンク】 publisher = Peter Davis )〕 As the Royal Navy began interdicting slave ships, the slavers responded by abandoning their merchant ships in favour of faster ships, particularly Baltimore clippers. At first, the Royal Navy was often unable to catch these ships, however with the capture of slaver clippers and new faster ships from Britain the Royal Navy regained the upper hand. One of the most successful ships of the West Africa Squadron was one such captured ship, renamed . She successfully caught 11 slavers in one year. Until 1835 the Royal Navy was only allowed to take slavers that actually had slaves aboard. This meant the squadron could not interfere with vessels clearly equipped for the trade but without a cargo.〔Lloyd, Christopher (1949). The Navy and the Slave Trade. Longmans, Green and Co. p. 46.〕 It also gave slavers being pursued an incentive to throw their slaves overboard before capture to avoid the seizure of the vessel. By the 1840s the West Africa Squadron had begun receiving paddle steamers, such as , which proved superior in many ways to the sailing ships they replaced. The steamers were independent of the wind and their shallow draughts meant they could patrol the shallow shores and rivers. In the middle of the 19th century, there were around 25 vessels and 2,000 personnel with a further 1,000 local sailors involved in the effort.〔(The Royal Navy and the Battle to End Slavery ) Huw Lewis-Jones, BBC History〕 The Royal Navy considered the West Africa Station one of the worst postings due to the high levels of tropical disease. This did however provide Royal Navy surgeons with the experience they would use to effectively fight such diseases, but at a huge cost in lives. Britain pressed other nations into treaties to give the Royal Navy the right to search their ships for slaves.〔(【引用サイトリンク】url=http://www.pdavis.nl/Background.htm#WAS )〕 As the 19th century wore on, the Royal Navy also began interdicting slave trading in North Africa, the Middle East, and the Indian Ocean. The United States Navy assisted the West Africa Squadron, starting in 1820 with , which the US had captured from the Royal Navy in 1815. Initially the US contribution consisted of a few ships, but eventually the Webster-Ashburton Treaty of 1842 formalised the US contribution into the Africa Squadron. In 1870, the Cape of Good Hope Station absorbed the West Africa Squadron.〔(【引用サイトリンク】title= West Africa Squadron )〕 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「West Africa Squadron」の詳細全文を読む スポンサード リンク
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