170208-N-JI086-4570 BLACK SEA (Feb. 8, 2017) Boatswain's Mate 2nd Class Brantley Harper, assigned to the guided-missile destroyer USS Porter (DDG 78), signals a Royal Canadian Navy CH-124 Sea King during exercise Sea Shield 2017. The Romanian-led multinational exercise, held in the Black Sea, improves interoperability and proficiency of participating units. Porter, 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 Ford Williams/Released)