No, there was no reason to do so. Britain helped French troops in 1945 just after the end of WW2.
No , the US assisted the French .
The French Indochina
Ho Chi Minh, he saw the Japanese occupation as an opportunity to organize the Vietminh.
France was the only European Nation fighting in the 1st Indochina War (also known as the French Indochina War or French War).
Ho Chi Minh saw the Japanese occupation as an opportunity to organize the Vietminh. When the Japanese withdrew after World War II, he and the Vietminh declared Vietnamese independence.
The Vietminh victory caused the French to withdraw from Vietnam.
France ruled it, and this is why it was called "French" Indochina.
1946.
The French had fought there from 1946 to 1954; 1st Indochina War or French Indochina War.
Dien Bien Phu.
The First Indochina War (also known as the French Indochina War, Anti-French War, Franco-Vietnamese War, Franco-Vietminh War, Indochina War, Dirty War in France, and Anti-French Resistance War in contemporary Vietnam) was fought in French Indochina from December 19, 1946, until August 1, 1954, between the French Union's French Far East Expeditionary Corps, led by France and supported by Emperor Bảo Đại's Vietnamese National Army against the Việt Minh, led by Hồ Chí Minh and Võ Nguyên Giáp. Most of the fighting took place in Tonkin in Northern Vietnam, although the conflict engulfed the entire country and also extended into the neighboring French Indochina protectorates of Laos and Cambodia.
Invasion of French Indochina happened on 1940-09-26.