Battle of the Iron Triangle ending a bitter four-month struggle. Following the withdrawal from Base 82 COSVN organized a new corps headquarters in the Tay Ninh- Binh Long region and designated it the 301st Corps. This corps would soon direct the combat operations of the 7th and 9th NVA Divisions, separate regiments, and additional formations already en route from North Vietnam. Meanwhile General Thuần decided to rest the tired troops of the 5th Division and turned his attention to sending his 25th Division to clear out the PAVN bases in the Ho Bo area west of the Iron Triangle. The ARVN defenses around An Dien
Iron Triangle (Vietnam) or Viet Cong (NLF). The Location of the Iron Triangle was between the Saigon River on the west and the Tinh River on the east and bordering Route 13 about 25 miles (40 km) north of Saigon. The southern apex of the "triangle" was seven miles (11 km) from Phú Cường, the capital of Bình Dương Province. Its proximity to Saigon was both a reason for American and South Vietnamese efforts to eradicate it, as well as why it remained a crucial area for Communist forces to control. During the French war in Indochina, from 1946 to 1954, the Viet