180717-N-BW951-168 NORTH SHORE, Hawaii (July 17, 2018) A Republic of Korea navy Special Warfare Flotilla free fall parachute jumper (left) observes as the chock jumpmaster looks for the drop zone during static line airborne training operations as part of RIMPAC 2018. Twenty-five nations, 46 ships, five submarines, about 200 aircraft and 25,000 personnel are participating in RIMPAC from June 27 to Aug. 2 in and around the Hawaiian Islands and Southern California. The world's largest international maritime exercise, RIMPAC provides a unique training opportunity while fostering and sustaining cooperative relationships among participants critical to ensuring the safety of sea lanes and security on the world's oceans. RIMPAC 2018 is the 26th exercise in the series that began in 1971. (U.S. Navy photo by Chief Mass Communication Specialist Cynthia Z. De Leon/Released)