160820-N-UG095-125 PACIFIC OCEAN (Aug. 20, 2016) Damage Controlman 3rd Class Brendon Thomas climbs a ladder during a main space fire drill aboard amphibious assault ship USS Boxer (LHD 4). Boxer, the flagship for the Boxer Amphibious Ready Group, with the embarked 13th Marine Expeditionary Unit, is operating in the U.S. 7th Fleet area of operations in support of security and stability in the Indo-Asia-Pacific region. (U. S. Navy photo by Mass Communication Specialist 3rd Class Michael T. Eckelbecker/Released)