U.S. Marine Corps Lance Cpl. Richard Thunberg, left, a rifleman with India Company, 3rd Battalion, 7th Marine Regiment, provides security as Staff Sgt. Alberto Boy, Platoon Sergeant calls in enemy positions while conducting a simulated company assault during an Integrated Training Exercise (ITX) aboard Marine Corps Air Ground Combat Center Twentynine Palms, Calif., Aug. 14, 2013. ITX is a training exercise held to prepare Marines prior to their deployment. (U.S. Marine Corps photo by Lance Cpl. James Mast 1st Marine Division Combat Camera / Released)