160706-N-AV234-132 KAPOLEI, Hawaii (July 6, 2016) while participating in Rim of the Pacific 2016 Sailors assigned to Arleigh Burke-class guided missile destroyer USS Howard (DDG 83) and the San Antonio-class amphibious transport dock USS San Diego (LPD 22) alongside volunteers from Joint Base Pearl Harbor-Hickam conducted a cleanup at Kalaehoa Heritage Park. RIMPAC 2016 is the 25th exercise in the series that began in 1971. 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. (U.S. Navy photo Mass Communication Specialist 2nd Class Somers Steelman/Released)