150422-N-EC444-013 ATLANTIC OCEAN (April 22, 2015) Civil service mariner Fred Walker, engine utilityman, updates engineering logs aboard the Military Sealift Command joint high-speed vessel USNS Spearhead (JHSV 1). Spearhead is on deployment to the U.S. 6th Fleet area of responsibility in support of the international collaborative capacity-building program Africa Partnership Station. (U.S. Navy photo by Lt. Sonny Lorrius/Released)