A GBU-43/B Massive Ordnance Air Blast bomb strikes an ISIS-K cave and tunnel systems in the Achin district of the Nangarhar Province in eastern Afghanistan at 7:32 p.m. local time April 13, 2017. The strike was designed to minimize the risk to Afghan and U.S. forces conducting clearing operations in the area while maximizing the destruction of ISIS-K fighters and facilities. ISIS-K, also known as the Khorasan group, is based in the Afghanistan-Pakistan region and is composed primarily of former members of Tehrik-e Taliban Pakistan and the Afghan Taliban. (DoD video)
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