151120-N-TC720-400 ROTA, Spain (Nov. 20, 2015) USS Donald Cook (DDG 75) pulls into Rota, Spain, to conclude its third forward deployed patrol Nov. 20, 2015. Donald Cook, an Arleigh Burke-class guided-missile destroyer, forward deployed to Rota, Spain is concluding 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 3rd Class Mat Murch/Released)