Photo G0664: SP/4 Charles Patrick’s Vietnam “Short-Timers Calendar,” posted on the barracks wall in A Company, 720th MP Battalion, 89th MP Group, 18th MP Brigade on Long Binh Post in Bien Hoa Province of III Corps Tactical Zone, Vietnam in 1967.If you have a photo or an original Short-Timers calendar, please notify the History Project Manager via this Email Link. Courtesy of SP/4 Charles R. Patrick, A Company, 720th MP Battalion, October 1966-October 1967.