190728-N-WP865-0069 ATLANTIC OCEAN (July 28, 2019) Chief Master-at-Arms Michael Thom, assigned to the Harpers Ferry-class amphibious dock landing ship USS Oak Hill (LSD 51), works with Sailors on the bridge to locate surface contacts during a basic surface warfare exercise while participating in a surface warfare advanced tactical training (SWATT) in the Atlantic Ocean. SWATT is designed to increase war fighting proficiency, lethality and interoperability of participating units. (U.S. Navy photo by Mass Communication Specialist 2nd Class Brenton Poyser/Released)