U.S. Marine Corps Cpl Brandon McKendree, a data analyst with Headquarters Battery, 11th Marine Regiment (11th Marines), digs a hole for a support beam for camouflage netting aboard Marine Corps Air Ground Combat Center Twentynine Palms, Calif., April 20, 2013. 11th Marines conducted an artillery desert firing exercise to maintain their combat proficiency via realistic combat scenarios. (U.S. Marine Corps photo by Lance Cpl James Mast, 1st Marine Division/ Released)