In the spring of 1954, Vietnamese revolutionaries launched a decisive assault against French colonial troops in the mountain valley of Dien Bien Phu. The military defeat of France, crystalized in the surrender of French troops in May 1954, was the single most crucial event in the collapse of colonial power. In military terms, France had unambiguously yielded to the strategic brilliance and soldierly élan of the Vietnamese, but culturally and intellectually, the empire was not so easily dispatched. Though it was decisive, the military victory alone could not resolve the problems caused by colonial domination. Rather, it created the possibility for Vietnamese to recover from the experience of colonization. Thus, in June, only a month after the French surrender, revolutionary scholars began a new offensive — an intellectual assault — against the most basic assumptions and conclusions of the colonial presence by sending forth a cascade of histories, a rush of ethnographic works, and waves of folkloric studies. In unintended ways, however, the sheer energy of their response also underscored the great difficulty of their endeavor.