Photo G3381: SP/4 Herman C. Hopwood of the 148th MP Platoon, 89th MP Group, 18th MP Brigade, Tan San Nhut Air Base, Saigon, Central Military District, III Corps Tactical Zone, Vietnam November 1967. Courtesy of SGT Herman C. Hopwood of the 148th MP Platoon, 89th MP Group, 18th MP Brigade, 1966-1967.