This battle has always fascinated me. I remember watching the newsreels when I was a kid. "In the summer of 1967, American commanders learned of a build-up of People's Army of North Vietnam (PAVN) forces in the area around Khe Sanh in northwest South Vietnam. Responding to this, the Khe Sanh Combat Base (KSCB), located on a plateau in a valley of the same name, was reinforced by elements of the 26th Marine Regiment under Colonel David E. Lownds. Also, outposts on the surrounding hills were occupied by American forces. While KSCB possessed an air strip, its overland supply route was over the dilapidated Route 9 which led back the coast. That fall, a supply convoy was ambushed by PAVN forces on Route 9. This was the last overland attempt to resupply Khe Sanh until the following April. Through December, PAVN troops were spotted in the area, but there was little fighting. With the increase in enemy activity a decision was needed regarding whether to further reinforce Khe Sanh or abandon the position. Assessing the situation, General William Westmoreland elected to increase the troop levels at KSCB." http://militaryhistory.about.com/od/vietnamwar/p/khesanh.htm Makes you wonder why they bothered defending the firebase just to abandon it a few months later.