Photo G2439: Members of A Company, 720th MP Battalion convoy escort secure the scene as the convoy commander takes action to repair the roadway after a large land mine explosion halts the convoy in Vietnam, 1967 or early 1968. If you can identify the convoy run use this Email Link. Courtesy of SP/4 John F. Durden, A Company, 720th MP Battalion, 89th MP Group, 18th MP Brigade, Long Binh, Vietnam,1967-1969.