From Anarchopedia
Marxism and anarchism are not always incompatible. At the beginning of the 20th century many Marxists and Anarchists were united within syndicalist movements for militant revolutionary trade unions (see: De Leonism, IWW). Many Marxists have participated honestly in anarchist revolutions, and many Anarchists have participated honestly in Marxist revolutions. More over, a large number of political groups attempt a synthesis of Marxist and Anarchist traditions with the aim of a liberated workers society. Examples would include Autonomist Marxism and Situationism.
