La bataille de Diên Biên Phu (Điện Biên Phủ selon l'orthographe vietnamienne) est un moment clé de la guerre d'Indochine qui se déroula du 20 novembre 1953 au 7 mai 1954 et qui opposa, au Tonkin, les forces de l'Union française aux forces du Việt Minh, dans le nord du Viet Nam actuel
The Battle of Dien Bien Phu (French: Bataille de Diên Biên Phu; Vietnamese: Chiến dịch Điện Biên Phủ, "Campaign of Dien Bien Phu") was the climactic confrontation of the First Indochina War between the French Union's French Far East Expeditionary Corps and Viet Minh communist-nationalist revolutionaries. It was, from the French view before the event, a set piece battle to draw out the Vietnamese and destroy them with superior firepower. The battle occurred between March and May 1954 and culminated in a comprehensive French defeat that influenced negotiations underway at Geneva among several nations over the future of Indochina.