International audienceElisée Reclus (1830-1905) argued that ‘anarchy is the highest expression of order’. This assertion, clashing with the bourgeois interpretation of anarchy as chaos, perfectly captured the theories that were being elaborated by Reclus and other anarchist geographers including Pëtr Kropotkin (1842-1921). At the centre of these theories lay the conviction that societies organised around mutual aid and cooperation would be infinitely more rational and empowered than societies organised under the State and capitalism. Then, militants like Errico Malatesta (1853-1932) and Luigi Fabbri (1877-1935) advocated the need for formal anarchist organisation - to put in practice the principles of a horizontal and federalist society in ...