180531-N-KP946-0057 MEDITERRANEAN SEA (May 31, 2018) Sailors refuel an MH-60R Sea Hawk, assigned to the Nimitz-class aircraft carrier USS Harry S. Truman (CVN 75), aboard the Arleigh Burke-class guided-missile destroyer USS Donald Cook (DDG 75) May 31, 2018. Donald Cook, forward-deployed to Rota, Spain, is on its seventh patrol in the U.S. 6th Fleet area of operations in support of regional allies and partners, and U.S. national security interests in Europe and Africa. (U.S. Navy photo by Mass Communication Specialist 2nd Class Alyssa Weeks / Released)