NHA TRANG, Vietnam (May 16, 2021) U.S. Coast Guard Petty Officer 1st Class Brendon Ballard (left), conducts pre-dive procedures and checks before authorizing a diver to enter the water in Nha Trang Province, Vietnam, May 16, 2021 during a Defense POW/MIA Accounting Agency (DPAA) recovery mission. DPAA’s mission is to achieve the fullest possible accounting for missing and unaccounted for U.S. personnel to their families and the nation. (U.S. Army photo by Sgt. Mitchell Ryan)