PACIFIC OCEAN (March 19, 2015) Gunner’s Mate Seaman Christian Grimm, from Lanexa, Va., reloads a .50-caliber machine gun during a live-fire exercise onboard the San Antonio-class amphibious transport dock ship USS Anchorage (LPD 23). Anchorage is underway participating in a composite training unit exercise (COMPUTEX) with the Essex Amphibious Ready Group (ARG), which is comprised of Amphibious Squadron (PHIBRON) THREE and 15th MEU. (U.S. Navy photo by Mass Communication Specialist 3rd Class Liam Kennedy/Released)