Battle of the Iron Triangle 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 River and on the east by the smaller but unfordable obstacle of the Thi Thinh River.
Farabeuf's Triangle Farabeuf's Triangle Farabeuf's Triangle is the triangular space in the upper portion of the neck where the bifurcation of the carotid artery can be seen. It is limited: the rear: the jugular vein; internal below and beyond: the facial vein; above and beyond: the hypoglossal nerve. This triangle serves as a reference to locate surgery elements that are in the carotid triangle. The triangle of Farabeuf is bounded by the internal jugular vein (posterior), common facial vein (anterior-inferior) and hypoglossal nerve (anterior-superior). The jugulodigastric lymph node is commonly found within these boundaries, and drains the pharyngeal tonsil. The triangle had