Photo G2609: SP/4 William R. Parker, B Company, 720th MP Battalion Ambush Platoon on the bow of a PBR on the Dong Nai River during a mission in the Battalion Tactical Area Of Responsibility, Vietnam in 1970. Courtesy of SP/4 William R. Parker, B Company, 720th MP Battalions, 89th MP Group, 18th MP Brigade, 1969- 1970.