U.S. sailors and Marines stand at parade rest as the aircraft carrier USS Nimitz (CVN 68) arrives in Pearl Harbor, Hawaii, July 2, 2012, during Rim of the Pacific (RIMPAC) 2012. RIMPAC is a U.S. Pacific Command-hosted biennial multinational maritime exercise designed to foster and sustain international cooperation and security on the world's oceans. (U.S. Navy photo by Mass Communication Specialist 3rd Class Ian A. Cotter)