170108-N-KP948-060 MEDITERRANEAN SEA (Jan. 8, 2017) USS Donald Cook (DDG 75) transits the Mediterranean Sea. 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 and Africa. (U.S. Navy photo by Mass Communication Specialist 3rd Class Alyssa Weeks/Released)