출처: http://www.bbc.co.uk/news/world-middle-east-35472662 IS conflict: Counting the civilian cost of US-led air strikesBy Paul WoodBBC News, Istanbul4 February 2016 From the sectionMiddle EastImage copyrightUS Air ForceImage captionUS-led coalition aircraft have flown 9,800 missions and dropped 35,000 bombs in Syria and IraqIslamic StateWhat is 'Islamic State'?Why IS milita..