191014-N-BM428-0014 ARCTIC OCEAN (Oct. 14, 2019) The Arleigh Burke-class guided-missile destroyer USS Donald Cook (DDG 75) patrols the Arctic Ocean, Oct. 14, 2019. Donald Cook, forward deployed to Rota, Spain, is on its ninth patrol 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 Damon Grosvenor/Released)