The Military Sealift Command rescue and salvage ship USNS Salvor (T-ARS 52) pulls into Joint Base Pearl Harbor-Hickam. Twenty-two nations, 42 ships, six submarines, more than 200 aircraft and 25,000 personnel are participating in the biennial Rim of the Pacific (RIMPAC) 2012 exercise from June 29 to Aug. 3, in and around the Hawaiian islands. The world’s largest international maritime exercise, RIMPAC provides a unique training opportunity that helps participants foster and sustain the cooperative relationships that are critical to ensuring the safety of sea lanes and security on the world’s oceans. RIMPAC 2012 is the 23rd exercise in the series that begin in 1971. (U.S. Navy photo by Mass Communication Specialist 2nd Class Eric Crosby/Released)