150625-N-FQ994-227 MEDITERRANEAN SEA (June 25, 2015) Gunner's Mate 2nd Class Anna Field, left, from Murrieta, Calif., and Sonar Technician (Surface) 2nd Class Julie Johns, from Walnut, Kan., man a .50-caliber machine gun aboard the guided-missile destroyer USS Ross (DDG 71) during a general quarters training exercise. Ross, an Arleigh Burke-class guided-missile destroyer, forward-deployed to Rota, Spain, 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)