170506-N-AF263-007 PACIFIC OCEAN (May 6, 2017) The Wasp-class amphibious assault ship USS Essex (LHD 2) conducts an underway replenishment with the Military Sealift Command Henry J. Kaiser-class fleet replenishment oiler USNS Henry J. Kaiser (T-AO 187). Essex is conducting sea trials off the coast of southern California. (U.S. Navy photo by Mass Communication Specialist Seaman Sabyn L. Marrs/Released)