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 whose troops had been in heavy combat for a month, with the 5th Division. Instead of relieving the 18th, General Thuần decided to try his armor again. Holding the infantry in position, he sent the 318th and 322nd Task Forces back into the Triangle, one north of Route 7, the other generally along the road. The PAVN's antitank defenses, primarily employing the 82-mm. recoilless gun, stopped the attack once again, destroying 13 M113 armored personnel carriers and 11 M48 tanks between 27 June and 1 July, even though ARVN artillery and the RVNAF supported the attack with 43,000 rounds and