160425-N-TC720-113 NORTH SEA (April 25, 2016) - Boatswain's Mate 2nd Class Allen Gashwytewa, from Waimanlo, Hawaii, leads a security reaction force team down a ladderwell aboard USS Donald Cook (DDG 75) during security reaction force training April 25, 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)