Note 12 — PART III THE BUILDUP AND THE OPENING ROUND

In addition, one regiment of the 324th Division was located in the central DMZ some 10-15 miles from Khe Sanh and maintained a resupply role. In the early stages of the siege, the presence of the 320th Division was confirmed north of the Rockpile within easy reinforcing distance of Khe Sanh; thus, General Westmoreland and General Cushman were initially faced with the possibility that Khe Sanh would be attacked by three divisions plus a regiment. General Tompkins, however, kept constant pressure on these additional enemy units and alleviated their threat.