Iron Triangle (Vietnam) bureau members Phạm Hùng and Lê Đức Thọ, and southern military commander Trần Văn Trà all joined together in the Iron Triangle region to orchestrate the final, decisive attack on Saigon. The area had remained allied with the nationalist communist forces from the beginning of the French war in 1946 to the fall of Saigon in 1975: an exception in a country often torn region by region between control by American forces and control by the Viet Cong. Iron Triangle (Vietnam) The Iron Triangle (Vietnamese:"Tam Giác Sắt") was a area in the Bình Dương Province of Vietnam, so named due
Battle of the Iron Triangle While the 52nd Infantry remained in reserve holding the An Dien perimeter, two battalions of the 48th Infantry moved south and west to protect the southern flank of Task Force 318 as it advanced along Route 7 towards Base 82. To the south, the 43rd Regiment maintained contact with the 272nd Regiment. Meanwhile the PAVN 9th Division had withdrawn the remnants of the 95C Regiment from action and placed its 271st Regiment at Base 82, where it prepared deep, mutually supporting defensive positions. Clearly indicating its resolve to conduct a determined defense along Route 7 in the Iron Triangle, COSVN