The doctrines of Marxism as applied by Lenin, a founder of the Soviet Union, to the building of Marxist nations. With Karl Marx, Lenin called for a classless society in which all means of production would be commonly owned (communism). Unlike some Marxists, however, Lenin stressed bold, revolutionary action and insisted that a strong Communist party would be needed in a Marxist nation to direct the efforts of the workers. Lenin also argued that capitalist nations resort to aggressive imperialist moves as they decline and that Marxist nations must therefore be prepared for war. Eventually, according to Marxism-Leninism, the rigid governmental structures that have characterized the former Soviet Union and other Marxist nations will not be necessary; the “withering away of the state” will occur. A major problem for Marxism-Leninism has been the difficulty of abandoning these governmental structures. (Compare capitalism and imperialism.)