Photo G2686: Unidentified members of B Company, 720th MP Battalion, 89th MP Group, 18th MP Brigade, inside a barracks at their Long Binh Post compound, in III Corps Tactical Zone, Vietnam in 1971. If you can identify these soldiers use this Email Link. Courtesy of SP/4 Marion Carl "Pete" Foster, B Company, 720th MP Battalion, 89th MP Group, 18th MP Brigade, August 1971-April 1972.