Joseph Stalin, originally Ioseb Besarionis dze Jughashvili, was a Soviet revolutionary, politician and statesman who became the leader of the Soviet Union from 1924 until his death in 1953. He held power as General Secretary of the Communist Party of the Soviet Union (1922–1952) and Chairman of the Council of Ministers of the Soviet Union (1941–1953).
Initially governing the country as part of a collective leadership, he consolidated power to become an informal dictator by the 1930s. Ideologically adhering to the Leninist interpretation of Marxism, he formalised these ideas as Marxism–Leninism, while his own policies are called Stalinism.
Volume 9 of the collected works of Stalin deals heavily with the work of the opposition in the Comintern and Bolshevik Party including the social-democratic deviations of Trotsky and Co., the Kamenevist problems on the question of the relationship of the peasantry to the dictatorship of the proletariat, and finally the problems of the opposition's frenzied ultra-leftism leading to their break with the correct line of the Comintern on China, something that would later be mirrored by Mao Tse-Tung himself he infamously declared that: "The Chinese revolution won victory by acting contrary to Stalin’s will."
In particular, Stalin's writings on the Chinese Revolution and his report to the Seventh Enlarged Plenum of the ECCI are of great importance in the study of Leninism and the Chinese Revolution.