Khe Sanh Combat Base was a United States Marine Corps outpost in South Vietnam (MGRS 48QXD850418) used during the Vietnam War. The airstrip was built in September 1962. Fighting began there in late April of 1967 known as the "Hill Fights", which later expanded into the 1968 Battle of Khe Sanh. U.S. commanders hoped that the North Vietnamese Army would attempt to repeat their famous victory at the Battle of Dien Bien Phu, and the battle ended as a failure for the North Vietnamese Army. The defense of Khe Sanh became one of the largest sieges of the war and commanded heavy international attention in the media one of several climactic phases of the Tet Offensive. On July 5, 1968, Khe Sanh was abandoned, the U.S. Army citing the vulnerability of the base to enemy artillery. However, the closure permitted the 3rd Marine Division to construct mobile firebase operations along the northern border area.
In 1971 Khe Sanh was reactivated to support Operation Lam Son 719, the South Vietnamese incursion into Laos. It was abandoned again sometime in 1972. In March 1973, American officials in Saigon reported that North Vietnamese troops had rebuilt the old airstrip at Khe Sanh and were using it for courier flights into the south. Today Khe Sanh Combat Base is a museum where relics of the war are exhibited. Most of the former base is now overgrown by wilderness or coffee and banana plants. However, to this day nothing will grow on the airstrip itself.