Craipeau returned to mainland France, where he participated in the creation of the New Left. This fused with the Movement for the Liberation of the City to form the Socialist Left Union and, in 1960 with several groups to form the Unified Socialist Party. He remained a leading member of this party for many years, during which he wrote numerous books on left-wing politics and revolution. See also Bureaucratic collectivism References Patrick Silberstein, Yvan Craipeau, un "dinosaurio trotskista" The 'Third Camp' in France Yvan Craipeau Papers Mémoires d'un Dinosaure Trotskyste, L'Harmattan, Paris, 1999 Swimming against the Tide: Trotskyists in German-occupied France, Merlin, London, 2013. Translation and introduction by David Broder, with a documentary appendix. 1911 births 2001 deaths People from La Roche-sur-Yon Internationalist Workers Party politicians Workers and Peasants' Socialist Party politicians Internationalist Communist Party (France) politicians Unified Socialist Party (France) politicians