170902-N-QR145-173 MEDITERRANEAN SEA (Sept. 2, 2017) Sailors aboard the Arleigh Burke-class guided-missile destroyer USS Porter (DDG 78) receive a pallet from the fleet replenishment oiler USNS Big Horn (T-AO 198) during a replenishment-at-sea while underway in the Mediterranean Sea, Sept. 2, 2017. Porter, forward-deployed to Rota, Spain, is on its fourth patrol in the U.S. 6th Fleet area of operations in support of regional allies and partners, and U.S. national security interests in Europe. (U.S. Navy photo by Mass Communication Specialist 3rd Class Krystina Coffey/Released)