Navy Petty Officer 2nd Class Aaron Brown enters the water to conduct a training dive mission on the USS Arizona Memorial during Rim of the Pacific exercises at Joint Base Pearl Harbor-Hickam, Hawaii, July 13, 2018. Brown is a builder assigned to Underwater Construction Team 2. Twenty-five nations, 46 ships, five submarines, 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. Navy photo by Petty Officer 1st Class Arthurgwain L. Marquez