The commanding general of I Marine Expeditionary Force, Lt. Gen. John A. Toolan speaks with Lance Cpl. Simmons Hollaway with Communications Company, 1st Marine Logistics Group, during a battlefield circulation aboard Marine Corps Air Ground Combat Center Twentynine Palms, Calif. during Exercise Desert Scimitar 14 on May 14, 2014. Desert Scimitar enables 1st Marine Division 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 photo by Lance Cpl. Leah Agler, 1st Marine Division Combat Camera/Released)