6 December Operation Henderson Hill ends. This action resulted in a reported 700 enemy casualties and 35 Marines killed and 273 wounded. 9 December Operation Napoleon/Saline ends, resulting in a reported 3,495 enemy casualties with 353 Marines killed and 1,959 wounded. 9 December Operation Meade River ends with 841 reported enemy casualties with 107 Marines killed and 522 wounded.
21 December Major General Carl A. Youngdale relieves Major General Rathvon McC. Tompkins as Deputy Commanding General, III MAF. Major General Ormond R. Simpson relieves Major General Youngdale as Commanding General, 1st Marine Division. 29 December Camp Carroll, the artillery base that supported the garrison at Khe Sanh,
is deactivated. 29 December Allied troops in Vietnam announce that they will not honor any holiday
December III MAF ends the year with operational control of the 1st Marine Division, the 3d Marine Division, the 1st Marine Air Wing, the Marine Force Logistic Command, the 101st Airborne Division, the Americal Division, and the 1st Brigade, 5th Infantry Division (Mechanized).
December The year closes with 31,691 reported enemy
casualties at the hands of Marine units in III MAF. The cost of the year's
fighting to the Marine Corps was 4,618 Marines killed and 29,320 wounded.