U.S. Marine Corps Cpl. Darek Kelsey peers through his rifle's scope at a live-fire range on Camp Leatherneck in Afghanistan's Helmand province, March 23, 2013. Kelsey, a scout sniper, is assigned to the 3rd Battalion, 4th Marine Regiment.
U.S. Marine Corps photo by Staff Sgt. Ezekiel R. Kitandwe
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