151028-N-TC720-045 MEDITERRANEAN SEA (Oct. 28, 2015) Sailors aboard USS Donald Cook (DDG 75) wait on the port side of the ship as it approaches the Military Sealift Command fleet replenishment oiler USNS Leroy Grumman (T-AO-195) for a replenishment at sea Oct. 28, 2015. 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 3rd Class Mat Murch/Released)