A sailor from the Australian Navy Underwater Salvage Team, right, tries to advance the ball past a Sailor from the guided-missile frigate USS McClusky during a morale, welfare and recreation soccer tournament as part of an in-port period of Rim of the Pacific 2010. RIMPAC is the world's largest international maritime exercise. RIMPAC is a biennial, multinational exercise designed to strengthen regional partnerships and improve interoperability.