Who was Joseph Stalin and what was he best known for?

Joseph Stalin was a Soviet political leader who served as the General Secretary of the Communist Party of the Soviet Union from the mid-1920s until his death in 1953. He is best known for his role in transforming the Soviet Union into a major world power through rapid industrialization and collectivization of agriculture, albeit at the cost of widespread famine and political repression. Stalin's regime was marked by the Great Purge, where millions were executed or sent to labor camps, as well as his leadership during World War II, particularly in the defeat of Nazi Germany. His legacy remains controversial, characterized by significant achievements overshadowed by immense human suffering.