Marxism-Leninism
Marxist-Leninism is a version of socialism, with some important modifications, adopted by the Soviet Union under Stalin. It shaped the Soviet Union and influenced Communist Parties worldwide. It was heralded as a possibility of building communism via a massive program of industrialization and collectivization. The rapid development of industry, and above all the victory of the Soviet Union in the Second World War, maintained that vision throughout the world, even around a decade following Stalin's death, when the party adopted a program in which it promised the establishment of communism within thirty years.
However, under Stalin's leadership, some claimed that evidence emerged that dented faith in the possibility of achieving communism within the framework of the Soviet model. Later, growth declined, and rent-seeking and corruption by state officials increased.
Under Stalin, the Communist Party of the Soviet Union adopted the theory of "socialism in one country" and claimed that, due to the "aggravation of class struggle under socialism", it was possible, even necessary, to build socialism alone in one country, the USSR.
