U.S. Coast Guard Cutter Waesche returns to the Coast Guard Base at Sand Island, Hawaii, July 30, 2014, after spending three weeks at sea participating in Rim of the Pacific (RIMPAC) 2014. Twenty-two nations, more than 40 ships and six submarines, about 200 aircraft and 25,000 personnel are participating in RIMPAC from June 26 to Aug. 1 in and around the Hawaiian Islands and Southern California. The world's largest international maritime exercise, RIMPAC provides a unique training opportunity that helps participants foster and sustain cooperative relationships that are critical to ensuring the safety of sea lanes and security on the world's oceans. RIMPAC 2014 is the 24th exercise in the series that began in 1971. (U.S. Coast Guard photo by Chief Warrant Officer Allyson E.T. Conroy/Released)