MARINE CORPS BASE CAMP PENDLETON, Calif., July 13,

MARINE CORPS BASE CAMP PENDLETON, Calif., July 13, 2016– U.S. Marine Sgt. Coltin Davenport, a forward observer, checks a target’s distance for a close air support mission with service members from the Canadian army and Mexican navy during the Southern California portion of Rim of the Pacific 2016 training exercise aboard Marine Corps Base Camp Pendleton, Calif., July 13, 2016. The close air support missions help redefine and refine tactics in close air support and will also serve to assist the Mexican navy for laying the ground work and foundation for a structured tactical air control party school in the future. Units participating in the exercise were Marines with 1st Air Naval Gunfire Liaison Company, Canada’s 2e Battalion Royal 22e Régiment, and service members with the Mexican navy. 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. Marine Corps Photo by Cpl Skyler E. Treverrow/ Released)