Dien Bien Phu was a serious defeat for the French and was the decisive battle of the Indochina war. The garrison constituted roughly one-tenth of the total French Union manpower in Indochina, and the defeat seriously weakened the position and prestige of the French; it produced psychological repercussions both in the armed forces and in the political structure in France. This was apparent with the previously planned negotiations over the future of Indochina, which had just begun. Militarily there was no point in France fighting on, as the Viet Minh could repeat the strategy and tactics of the Dien Bien Phu campaign elsewhere, to which the French had no effective response.