In the Battle of Nà Sản, starting on October 2, French commanders began using "hedgehog" tactics, consisting in setting up well-defended outposts to get the Việt Minh out of the jungle and force them to fight conventional battles instead of using guerrilla tactics.
The Battle of White Horse, was a battle during the Korean War hill in the Iron Triangle, formed by Pyonggang at its peak and Gimhwa-eup and Cheorwon-eup at its base, a strategic transportation route in the central region of the Korean peninsula.
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 (UN) infantry divisions, with additional support from the United States Air Force, against elements of the Chinese People's Volunteer Army (PVA) 15th and 12th Corps. The battle was part of UN attempts to gain control of "The Iron Triangle", and took place from 14 October to 25 November 1952.
On October 17, 1952, Giáp launched attacks against the French garrisons along Nghĩa Lộ, northwest of Hanoi, and overran much of the Black River valley, except for the airfield of Nà Sản where a strong French garrison entrenched.