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|combatant2= ISIL * ISWAP (2015-present) * Boko Haram (2009-15) Ansaru (2012-present)|commander1= Muhammadu Buhari (2015–present) Goodluck Jonathan (2010–2015) Umaru Yar'Adua (2009-2010) Ibrahim Geidam (2007–2009) Ali Modu Sheriff (2009–11) Kashim Shettima (2011-present) Isa Yuguda (2007–2015) Paul Biya (2014–present) Idriss Déby (2015–present) Mahamadou Issoufou (2014–present) |commander2= Abubakar Shekau Mallam Sanni Umaru〔(【引用サイトリンク】url=http://allafrica.com/stories/200908140646.html )〕 Abu Usmatul al-Ansari Abu Jafa’ar Mohammed Yusuf |strength1= Nigerian Army: 130,000 Active frontline personnel and 32,000 Active reserve personnel Nigeria Police Force: 371,800 officers Cameroonian Armed Forces: 20,000 soldiers African Union: 8,700 United States Army: 300 soldiers |strength2= 7,000–10,000〔(【引用サイトリンク】title=How Big Is Boko Haram? )〕 Unknown |casualties1= |casualties2= 1,957 killed |casualties3=15,000 killed and 1,000,000+ internally displaced〔(【引用サイトリンク】title=ACLED Version 5 (1997–2014) )〕〔 "Since July 2009, when the Boko Haram conflict escalated, at least 11,100 people have died on all sides of the insurgency."〕〔 "The available data suggests that as few 9,000 and as many as 17,500 people have died in the insurgency. The latter figure includes killings by both Boko Haram and the Nigerian military."〕〔(【引用サイトリンク】title=More than 100 Boko Haram fighters killed after first attack on Niger )〕 }} The Islamist insurgency in Nigeria began in 2009,〔(【引用サイトリンク】title=Who are Nigeria's Boko Haram Islamists? )〕 when the jihadist rebel group Boko Haram started an armed rebellion against the government of Nigeria. In 2012, tensions within Boko Haram resulted in gradual split of the group between Salafist conservative faction led by Abu Usmatul al-Ansari and the more dominant takfiri faction led by Abu-Bakr Shakau. By 2015, the group split to al-Qaeda affiliated Ansaru and the Shakau's faction which became the West Africa branch of ISIL. In 2013, more than 1,000 died in this conflict. The violence escalated dramatically in 2014, with 10,849 deaths.〔〔(【引用サイトリンク】title=Boko Haram's Bloodiest Year Yet: Over 9,000 Killed, 1.5 Million Displaced, 800 Schools Destroyed in 2014 )〕 The insurgency has since spread to Cameroon, Chad, and Niger thus becoming a major regional conflict. The insurgency takes place within the context of long-standing issues of religious violence between Nigeria's Muslim and Christian communities. ==Background== 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「Islamist insurgency in Nigeria」の詳細全文を読む スポンサード リンク
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