Photo G3136: Unidentified MP and SP/5 William E. Hunter (right), members of the A Company, 720th MP Battalion, 89th MP Group 18th MP Brigade, on Long Binh Post in III Corps Tactical Zone, Bien Hoa Provence, Vietnam in 1968. If you can identify the other MP use this Email Link. Courtesy of SP/4 Thomas A. Watson, A Company, 720th MP Battalion, 89th MP Group, 18th MP Brigade, Vietnam, 1967-1968.