Defense Secretary Ash Carter, right, meets with Marine Corps Lt. Gen. David H. Berger, commanding general of the 1st Marine Expeditionary Force, and Marine Corps Rear Adm. Daniel Fillion, commander of Expeditionary Strike Group 3, as he arrives on Camp Pendleton Calif., Aug. 27, 2015. DoD photo by U.S. Air Force Master Sgt. Adrian Cadiz