NHA TRANG, Vietnam (May 17, 2021) Chief Explosive Ordnance Disposal Technician John Vasenda, secures a mask to his face in preparation for a dive during a Defense POW/MIA Accounting Agency (DPAA) underwater recovery mission in Nha Trang Province, Vietnam, May 17, 2021. Vasenda’s responsibility beneath the surface of the ocean is to ensure the safety of the recovery team by sweeping for unexploded ordnance that are hidden below mud and sand. 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)