Battle of the Iron Triangle had achieved combat parity and were pushing against the ARVN's outer line of defense around Saigon. Battle of the Iron Triangle The Battle of the Iron Triangle took place from 16 May to 20 November 1974, when the People's Army of Vietnam (PAVN) 9th Division captured Rach Bap and An Dien The Army of the Republic of Vietnam (ARVN) regained the lost towns in a series of costly counterattacks. The Iron Triangle was an important strategic location, bounded on the north by the jungle and overgrown rubber plantations of the Long Nguyen Secret Zone, on the west by the Saigon
Battle of the Iron Triangle Infantry, 5th Division, had been selected to try to capture Base 82, having replaced its sister regiment, the 7th, in the Iron Triangle. Prior to an attack scheduled for 7 September, ARVN reconnaissance patrols had successfully reached the base's perimeter. The 8th Regiment formed a task force around its 1st and 2d Battalions, reinforced by the 5th Division Reconnaissance Company and a small armored troop with 3 M41 tanks, 3 M48 tanks, and 3 M113s. The 1st Battalion advanced south of Route 7, while the 2nd Battalion, with the reconnaissance company and the armored troops, advanced on an axis north