160520-N-VD165-157 GULF OF ADEN (May 20, 2016) Marine Corps Sgt. Randy Robles, assigned to the 13th Marine Expeditionary Unit, fires a .50 caliber special applications scoped rifle during a defense of the amphibious task force live-fire exercise aboard amphibious assault ship USS Boxer (LHD 4). Boxer is the flagship for the Boxer Amphibious Ready Group and, with the embarked 13th Marine Expeditionary Unit, is deployed in support of maritime security operations and theater security cooperation efforts in the U.S. 5th Fleet area of operations. (U.S. Navy photo by Mass Communication Specialist 2nd Class Jose Jaen/Released)