French anarchists were careful to distinguish between the Popular Front's leaders - the politicians - and its working-class supporters. They enthused over ‘the fraternity, the solidarity and the strength of the working class’ manifested in the extra-parliamentary antifascist movement of 1934–35. They took an active, and in some respects a leading part, in that movement. This article assesses the French anarchists' contribution to the antifascist movement and their critique of ‘Popular Frontism’. It also asks to what extent the anarchist movement can be said to have succeeded or failed in its objectives, and examines the ideological debates which the experiences of 1936–39 provoked between different anarchist currents over revolutionary strategy and tactics.