180721-N-WR119-1037 MARINE CORPS TRAINING AREA BELLOWS, Hawaii (July 21, 2018) Builder 1st Class Michael Hartman, assigned to Naval Mobile Construction Battalion (NMCB) 3, cuts a section of concrete during a airfield damage repair exercise during the Rim of the Pacific (RIMPAC) exercise. NMCB-3, 18 and 22 participated in a joint exercise with the Army 561st Engineering Company, 130th Engineer Brigade, 84th Engineer Battalion during RIMPAC July 21, 2018. Twenty-five nations, 46 ships, five submarines, and 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 of the world’s oceans. RIMPAC 2018 is the 26th exercise in the series that began in 1971. (U.S. Navy photo by Mass Communication Specialist 1st Class Gilbert Bolibol/Released)