Afghan army soldiers inspect at the site of a U.S. bombing in Achin district of Nangarhar province, Afghanistan, April 28, 2017. On April 13, the U.S. forces in Afghanistan struck an IS cave complex by the largest non-nuclear bomb in the mountainous Achin district of the province, 120 km east of Kabul, killing nearly 100 IS fighters and destroying a militants' hideout together with several bunkers and tunnels. (Xinhua/Rahman Safi)
