 In July 1969 3rd Battalion, 3rd Marines assumed responsibility for the Cam Lộ area.In September 1969 as part of Operation Keystone Cardinal the 3rd Marine Division began its withdrawal from Vietnam and by early October the Marines had handed over control of their tactical area of operations (including the Cam Lộ base) to the 1st Brigade, 5th Infantry Division.By January 1972 the ARVN 3rd Division had assumed responsibility for the area north of Highway 9.