U.S. Special Forces soldiers practice clearing rooms in a shoot house near Kabul province, Afghanistan, May 9, 2014 USSF maintain battle operation skills to keep proficiency while conducting operations with Afghan forces. (U.S. Army photo by Spc. Connor Mendez/released)

A U.S. Special Operations Forces Soldier joins a Philippine SOF soldier on a firing line to fire at short, medium and close targets during the 3rd Annual SOF Challenge on Fort Magsaysay, Philippines, May 3, 2014. Philippines, Australian and U.S. Special Operations Forces will be training together over the next three weeks during Balikatan 2014. The Armed Forces Philippines and U.S. have had a long-standing relationship and welcome the Australian Defence Force’s increasing participation in Balikatan. (U.S. Marine Corps photo by Staff Sgt. Pete Thibodeau/Released)

Coalition soldiers participates in advanced marksmanship at a firing range in Khost district, Khost province, Jan. 7, 2013. (U.S. Army photo by Pfc. Codie Mendenhall)

U.S. Marine Corps Gen. James F. Amos, right, the commandant of the Marine Corps, holds a sniper rifle while talking with Marines assigned to the 2nd Marine Special Operations Battalion during a visit to Forward Operating Base Puzeh in Helmand province, Afghanistan, Dec. 24, 2012. Amos and his wife, Bonnie, visited with Marines and Sailors throughout the province during the holiday trip. (U.S. Marine Corps photo by Sgt. Mallory S. VanderSchans/Released)