150323-N-JN664-059 MEDITERRANEAN SEA (March 23, 2015) Gunner’s Mate Seaman Kamal Carson, from Jacksonville, Fla., performs pre-fire maintenance on the MK 45 5-inch gun aboard USS Donald Cook (DDG 75) March 23, 2015. Donald Cook, an Arleigh Burke-class guided-missile destroyer forward-deployed to Rota, Spain, is conducting naval operations in the U.S. 6th Fleet area of operations in support of U.S. national security interests in Europe. (U.S. Navy photo by Mass Communication Specialist 2nd Class Karolina A. Oseguera/Released)