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 Triangle Hill in China today. Battle of Triangle Hill The Battle of Triangle Hill, also known as Operation Showdown or the Shangganling Campaign (), was a protracted military engagement during the Korean War. The main combatants were two United Nations infantry divisions, with additional support from the United States Air Force, against elements of the 15th and 12th Corps of the People's Republic of China. The battle was part of American attempts to gain control of "The Iron Triangle", and took place from October 14 – November 25, 1952. The immediate American objective was Triangle Hill (), a forested ridge of high