U.S. Army Spc. Joseph Reed, left, and Pfc. Carl Scott, both assigned to Charlie Troop, 3rd Brigade Combat Team, 10th Mountain Division, provide security at an exterior gate during a key leader engagement at Assistance Platform Matun Hill in Khost province, Afghanistan, March 18, 2014. The unit was deployed as a security force advise and assist brigade in support of Operation Enduring Freedom.