U.S. Army soldiers (L-R) Specialist Lance Doan, Private First Class Coty Nolff, Specialist Ben Purvis,...
U.S. Army soldiers (L-R) Specialist Lance Doan, Private First Class Coty Nolff, Specialist Ben Purvis, Sergeant William Mackenzie, and Staff Sergeant Brandon Durham from the 2nd Battalion, 12th Infantry Regiment of the 4th Brigade Combat Team, 4th Infantry Division check the aim of an 81mm mortar inside of Combat Outpost Nangalam in the Pech River Valley of Afghanistan's Kunar Province June 29, 2012. REUTERS/Lucas Jackson (AFGHANISTAN - Tags: CIVIL UNREST MILITARY)