What happened October 1952 AD in Vietnam

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.

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.

On October 29, 1952, in the largest operation in Indochina to date, 30,000 French Union soldiers moved out from the De Lattre line to attack the Việt Minh supply dumps at Phú Yên.

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.

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.

On October 29, 1952, in the largest operation in Indochina to date, 30,000 French Union soldiers moved out from the De Lattre line to attack the Việt Minh supply dumps at Phú Yên.