SAN DIEGO (July 15, 2022) The San Antonio-class amphibious transport dock ship USS Portland (LPD 27) returns to San Diego during Rim of the Pacific (RIMPAC) 2022 in Southern California. Twenty-six nations, 38 ships, four submarines, more than 170 aircraft and 25,000 personnel are participating in RIMPAC from June 29 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 while fostering and sustaining cooperative relationships among participants critical to ensuring the safety of sea lanes and security on the world's oceans. RIMPAC 2022 is the 28th exercise in the series that began in 1971. (U.S. Navy courtesy photo by Royal Australian Air Force Imagery Specialist Cpl. Craig Barrett)