150629-N-EZ054-159 MEDITERRANEAN SEA (June 29, 2015) Fire Controlman 3rd Class Trevor Amos, from Milwaukee, Wisconsin, mans a .50-caliber machine gun as the guided-missile destroyer USS Porter (DDG 78) transits the Strait of Gibraltar. Porter is on a routine patrol 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 2nd Class Luis R. Chavez Jr/Released)