FOOTNOTES:
[1] The number indicates the height of the hill in meters.
[2] The designation E/2/9 stands for Company E, 2d Battalion, 9th Marines. This type of designation will be used periodically for other Marine units throughout the text.
[3] The Combined Action Program was designed to increase the ability of the local Vietnamese militia units to defend their own villages. These units, referred to as Popular Forces, were reinforced by groups of Marines who lived, worked, and conducted operations with their Vietnamese counterparts. A Combined Action Company was an organization controlling several Marine squads which served with different Combined Action Platoons. Combined Action Company Oscar (CACO) was the unit operating in the Khe Sanh area. A Regional Forces company was comprised of local South Vietnamese soldiers along with their American and ARVN advisors who were under the operational control of the Vietnamese Province Chief.
[4] The III MAF and enemy operations during the period of the NVA/VC winter-spring offensive (1966-1967) will be the subject of a separate monograph prepared by the Historical Branch.
[5] The diversionary attacks were all launched apparently on schedule. On 27 and 28 April, the previously mentioned Marine fire support and supply bases were hit by some 1,200 rocket, artillery, and mortar rounds. Route 9 was cut in several places. The Special Forces Camp at Lang Vei was attacked and severely mauled on 4 May. Only the main effort was detected and subsequently thwarted.
[6] Marine losses were 155 killed and 425 wounded.