 From 16–26 February 1967 the Marines Special Landing Force comprising 1st Battalion 4th Marines and HMM-363 conducted Operation Deckhouse VI an amphibious assault on Sa Huỳnh to clear Vietcong infiltration routes and secure an area to serve as a logistics support base for allied units operating in the area.The U.S. Navy built the Sa Huỳnh Naval Support Activity in mid-1967 to support the arrival of the Army's Task Force Oregon in the area.On 15 February 1970 Sa Huỳnh Naval Support Activity was disbanded and its facilities were transferred to the U.S. Army Support Command.