160713-N-ON468-336 JOINT BASE PEARL HARBOR-HICKAM (July 13, 2016) Chinese navy sailors from submarine rescue ship Changdao (867) retrieve an LR-7 submersible undersea rescue vehicle following a successful mating evolution with a U.S. faux-NATO rescue seat, during Rim of the Pacific 2016. The evolution was the final event and practical portion of a multinational submarine rescue exercise between seven countries. Twenty-six nations, more than 40 ships and submarines, more than 200 aircraft and 25,000 personnel are participating in RIMPAC from June 30 to Aug. 4, 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 the cooperative relationships that are critical to ensuring the safety of sea lanes and security on the world's oceans. RIMPAC 2016 is the 25th exercise in the series that began in 1971. (U.S. Navy Photo By Mass Communication Specialist 2nd Class Jeff Troutman /RELEASED)