War ended, formally, in May 1945 but the Paris region had already been liberated the previous summer. Fayolle settled in Versailles where he joined in the reconstruction of the which towards the end of 1945 became the Anarchist Federation. Between 1945 and 1952 he took on the secretaryship for internal relations, and then, in 1950, that for external relations. However, he was opposed to the de facto power seizure by Georges Fontenis and early in 1953 he was excluded from the Anarchist Federation.