Joseph Stalin was a prominent leader of the Soviet Union from the mid-1920s until his death in 1953. He played a crucial role in transforming the country into a major world power through rapid industrialization and collectivization of agriculture. However, his rule was marked by widespread repression, including purges and forced labor camps, which led to the suffering and deaths of millions. Stalin's policies and actions significantly shaped the course of the 20th century, especially during World War II. His leadership helped the Soviet Union emerge as a superpower, but his legacy remains controversial due to the harsh methods he employed to maintain control and eliminate opposition.