Canadian soldiers and a U.S. Marine move in as a fire team to clear a rooftop during an urban operations exercise at Marine Corps Training Area Bellows in Kaneohe Bay, Hawaii, on July 6, 2012, during the Rim of the Pacific 2012 exercise. The exercise, more commonly know as RIMPAC, is a U.S. Pacific Command-hosted biennial multinational maritime exercise designed to foster and sustain international cooperation on the security on the world's oceans.