Iron Triangle (Vietnam) Iron Triangle (Vietnam) The Iron Triangle (Vietnamese:"Tam Giác Sắt") was a area in the Bình Dương Province of Vietnam, so named due to it being a stronghold of Viet Minh activity during the war. The region was under control of the Viet Minh throughout the French war in Vietnam and continued to be so throughout the phase of American involvement in the Vietnam War, despite concerted efforts on the part of US and South Vietnamese forces to destabilize the region as a power base for their enemy, the communist North Vietnamese–sponsored and–directed South Vietnamese insurgent movement, the National Liberation Front
Battle of the Iron Triangle Triangle on the night of 2/3 June, The fighting at An Dien wos especially fierce on 3 June as the PAVN used tanks against ARVN infantry. Armed with light antitank weapons, ARVN infantry knocked out at least 4 tanks in the final day of the battle. On 4 June, troops of the 18th ARVN Division finally entered An Dien and on the 5th overran the last position of the 95C Regiment, which had since been reinforced by elements of the 271st Regiment. On the morning of the 5th, two battalions of the 48th and two of the 52nd were holding