kabul civilian casualties afghan american air strike rise 50 percent since last year unite nations say thursday troop increase attack militants new strategy announce u.s. president donald trump august end september least 205 civilians kill 261 wound year air strike afghanistan u.n. investigators say quarterly report least 38 percent casualties cause international military force majority attribute afghan air force begin conduct attack two thirds civilian victims women children report say september u.s. warplanes drop bomb single month since 2010 drive largely trump strategy try reassert pressure militants several years drawdown foreign troop spokesman u.s. military command immediately comment report general dawlat waziri spokesman afghan ministry defence reject find say government take civilian casualties seriously quite obvious taliban insurgent group cause civilian casualties say add insurgents also use civilians human shield hide residential areas overall civilian casualties decrease slightly compare period last year report say least 2,640 civilians kill 5,379 injure year compare 2,616 kill 5,915 injure period 2016. drop reflect few casualties fight populate areas report note militants fail capture major cities head u.n. mission afghanistan tadamichi yamamoto praise afghan government formally endorse national policy design reduce civilian casualties government owe citizens particularly victims arm conflict ensure full implementation policy concrete action plan say overall u.n. attribute 64 percent civilian casualties anti-government militants like taliban islamic state pro-government force responsible 20 percent overall remainder attribute joint fight unidentified group accord u.n. afghan civilian casualties air strike rise 50 percent say u.n