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
Battle of the Iron Triangle had been killed. The expected PAVN counterattack came on the night of 5/6 June as two battalions of the 271st Regiment, supported by up to 14 tanks attacked from two directions. The ARVN held and its infantrymen knocked out 5 tanks and damaged 5 others. The second phase or the Iron Triangle campaign was over with the recapture of An Dien, and General Thuần was anxious to get the attack moving again toward Base 82 and Rach Bap. Although the An Dien bridge would soon be in condition to carry the tanks of the 318th Task Force, one company of