The Battle of Dien Bien Phu was supposed to be France's decisive end to Vietnam's war for independence, the First Indochina War. But instead, it effectively marks the end of European Empire. But how does it go so wrong for France? How are nuclear weapons involved? And why were the same mistakes repeated by the Americans? Historian and podcaster, Dan Snow, is here to help us find out... Learn more about your ad choices. Visit megaphone.fm/adchoices