180406-N-HD110-0057 PACIFIC OCEAN (April 6, 2018) The Harpers Ferry-class amphibious dock landing ship the USS Pearl Harbor (LSD 52) fires its close-in weapons system during a live-fire exercise. Pearl Harbor is underway off the coast of Southern California conducting routine training operations. (U.S. Navy photo by Mass Communication Specialist Seaman Danielle Baker/Released)