160321-N-TC720-268 CORFU, Greece (March 21, 2016) - USS Donald Cook (DDG 75) anchors out in Corfu, Greece, during a scheduled port visit March 21, 2016. Donald Cook, an Arleigh Burke-class guided-missile destroyer, forward deployed to Rota, Spain is conducting a routine patrol 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 Mat Murch/Released)