Illustration of U.S. Marine Cpl. Rob Reeves, a reproduction specialist with 1st Marine Division Combat Camera, cleaning his M16A4 service rifle during Exercise DESERT SCIMITAR 14 aboard Marine Corps Air Ground Combat Center Twentynine Palms, Calif., May 20, 2014. Exercise Desert Scimitar enables 1ST MARDIV to test and refine its command and control capabilities by acting as the headquarters element for a forward-deployed Marine Expeditionary Force. (U.S. Marine Corps Illustration by Lance Cpl. Elize McKelvey, 1st Marine Division Combat Camera/RELEASED)