 The end of cooperation between the FVdG and the political parties in the Ruhr region was part of a nationwide trend after Paul Levi , an anti @-@ syndicalist , became chairman of the KPD in March . Moreover , Rudolf Rocker , a communist anarchist and follower of Kropotkin , joined the FVdG in March 1919 . He returned via The Netherlands in November 1918 after living in exile in London , where he had been active in the Jewish anarchist scene . Augustin Souchy , more of a Landauer @-@ esque anarchist , also joined the federation in 1919 . Both rapidly gained influence in the organization and — as anti @-@ Marxists — were opposed to close collaboration with communists . 
