U.S. Marine Corps Corporal David Delon, assigned to

U.S. Marine Corps Corporal David Delon, assigned to Alpha Battery, 1st Battalion, 12th Marine Regiment, 3rd Marine Division, from Marine Corps Base Hawaii, waits for a fire mission to begin in support of Integrated Training Exercise 2-15 at Marine Corps Air Ground Combat Center Twentynine Palms (MCAGCC), Calif., Feb. 9, 2015. MCAGCC conducts relevant live-fire combined arms training, urban operations and joint/coalition level integration training that promotes operational forces readiness. (U.S. Air Force photo by Staff Sgt. Amy F. Picard/Released)