The Situationist International (SI) was an organization of artists and revolutionary intellectuals (see Situationist), whose main objective was to destroy the society of classes whereas oppressive system and fight the contemporary ideological system of Western civilization: call capitalist domination. The IS arrived ideologically speaking to the mixture of different revolutionary movements have appeared since the nineteenth century until his day, notably the Marxist thought of Anton Pannekoek, Rosa Luxemburg, Georg Lukacs and the Council called Communism or "Councilism".