190320-M-HB658-0117 PACIFIC OCEAN (March 20, 2019) A simulated casualty assigned to the 11th Marine Expeditionary Unit (MEU), receives oxygen from a U.S. Navy Hospital Corpsman during a simulated mass casualty scenario aboard the San Antonio-class amphibious transport dock ship USS John P. Murtha (LPD 26). The Marines and Sailors of the 11th MEU are conducting routine training as part of the Boxer Amphibious Ready Group in the eastern Pacific Ocean. (U.S. Marine Corps photo by Staff Sgt. Donald Holbert/Released)