a vietnamese official uses a shovel to aid the defense powmia accounting agency dpaa recovery efforts in quang tri province vietnam may 23 2017 dpaa team members deployed to the area in hopes of recovering the remains of two us marines unaccounted for during the 77 day siege of khe sanh in 1968 the mission of dpaa is to provide the fullest possible accounting for our missing personnel to their families and the nation us marine corps photo by cpl julian temblador mr7ryh.jpg from 在线聊天模块软件开发飞机：@kxkjww @kxkjrj） unac View Photo