U.S. Naval Advanced Tactical Support Base Tan An (1968-1969)

The Navy established an Advanced Tactical Support Base at this site on South Vietnam’s Vam Co Tay River for a short time during the Vietnam War. Initially, naval leaders planned to support anti-infiltration river patrols on the river northwest of Saigon from a repair, berthing, and messing barge stationed at Tan An. However when the vessel was deployed to another location down river, the shore facilities proved inadequate to support the river patrol boat (PBR) unit based there. As a result, in March 1969 the naval force reestablished its base of operations on Mobile Support Base II, which consisted on connected pontoons moored in the river.