The U.S. 23rd Division (Americal) ceases combat operations and begins its withdrawal from South Vietnam. The division had been activated in Vietnam on September 25, 1967, after which it assumed control of the 11th, 198th, and 199th Infantry Brigades (and associated support troops). Its headquarters was at Chu Lai in I Corps Tactical Zone and division troops conducted operations in Quang Nam, Quang Tri, and Quang Ngai Provinces.
In 1970, the division continued to fight in the Duc Pho, Chu Lai, and Tam Ky areas along the coast. When the division headquarters departed South Vietnam, the division colors were returned to Fort Lewis, Washington, where the Americal Division was officially inactivated. The only unit that remained in South Vietnam was the 199th Infantry Brigade, which continued to conduct operations as a separate brigade.