Photo G2044: SP/4’s Robert D. Bell (left) and Carl G. Brewer, HQ Detachment, 720th MP Battalion, members of the Can Tho, Detachment RTT Unit, Vietnam. They are filling the 55 gallon drums with sand building a bunker to ptotect their Radio Teletype Box in 1966. Courtesy of SP/4 Carl G. Brewer, HQ Detachment, 720th MP Battalion, 89th MP Group, 18th MP Brigade, October 1966 to October 1967.