Photo G3511  Unidentified Veterinary Technician in the K9 Dispensary at the Long Binh Post Headquarters of the 212th MP Company (Sentry Dog), 720th MP Battalion, 89th MP Group, 18th MP Brigade, in Bien Hoa Province, III Corps Tactical Zone, Vietnam in 1969. If you can identify this Vet Tech, use this Email Link. Courtesy of the family of SP/4 Eric G. Osen, 212th MP Company (Sentry Dog), 720th MP Battalion, 89th MP Group, 18th MP Brigade, Long Binh Post & Soc Trang, Vietnam, 1969-1970.