150706-N-FQ994-152 MEDITERRANEAN SEA (July 6, 2015) The Arleigh Burke-class guided-missile destroyer USS Ross (DDG 71) fires its MK45 5-inch gun during a live-fire training exercise. Ross is conducting naval operations 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 Robert S. Price/Released)