190907-N-SR275-0119 MEDITERRANEAN SEA (Sept. 7, 2019) The Arleigh Burke-class guided-missile destroyer USS Porter (DDG 78) fires a Mark 45 5-inch gun during a live-fire exercise in the Mediterranean Sea, Sept. 7, 2019. Porter, forward-deployed to Rota, Spain, is on its seventh patrol in the U.S. 6th Fleet area of operations in support of U.S. national security interests in Europe and Africa. (U.S. Navy photo by Mass Communication Specialist 3rd Class T. Logan Keown/Released)