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 were clearing the road past the An Dien bridge. Working at night with flash lights to avoid PAVN observation and fire, they removed 38 antitank mines from the route of advance. Weakened by casualties, the 52nd Infantry made very little progress on 2 and 3 June, and the 43rd Regiment was still being blocked by the PAVN 272nd Regiment. Đảo then ordered his 48th Infantry across the Thi Thinh south of Bến Cát, to pass through the 52nd and take An Dien. While the PAVN artillery continued to pound ARVN positions, two battalions of the 48th crossed into the Iron