180720-N-YR245-0108 PACIFIC OCEAN (July 20, 2018) Boatswain’s Mate 2nd Class Nicholas Poole, from Vancleave, Miss., signals an MH-60S helicopter assigned to the “Black Knights�? of Helicopter Sea Combat Squadron (HSC) 4 during a replenishment-at-sea from the auxiliary dry cargo and ammunition ship USNS Charles Drew (T-AKE 10) for Rim of the Pacific (RIMPAC) exercise, July 20, 2018. Twenty-five nations, more than 45 ships and submarines, and about 200 aircraft and 25,000 personnel are participating 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 2nd Class Craig Z. Rodarte/Released)