On this day, 1st Battalion, 9th U.S. Marines and South Vietnamese Marine Brigade Force Bravo conduct amphibious operations in the Kien Hoa Province in the Mekong Delta, located 62 miles south of Saigon.
This action, part of Operation Deckhouse V, marked the first time that U.S. combat troops were used in the Mekong Delta. The target area, called the Thanh Phu Secret Zone by the Viet Cong guerrillas, was believed to contain communist ammunition dumps, ordinance and engineering workshops, hospitals, and indoctrination centers. During the course of the operation, which lasted until January 15, seven U.S. Marines and 21 Viet Cong were killed.
