180228-N-EA818-175 ATLANTIC OCEAN (Feb. 28, 2018) The Nimitz-class aircraft carrier USS Harry S. Truman (CVN 75), right, conducts a replenishment-at-sea with the Military Sealift Command fast combat support ship USNS Arctic (T-AOE 8) and the German navy Sachsen-class frigate FGS Hessen (F221). Harry S. Truman has successfully completed its composite training unit exercise, certifying the ship and its carrier strike group for deployment. (U.S. Navy photo by Mass Communication Specialist 2nd Class Thomas Gooley/Released)