What role did Lenin and Stalin play in the conversion of Russia to the communist Soviet Union?

Vladimir Lenin was one of the most important members of the Bolshevik Party. The majority of the Russian Revolution and the need to implement a communist system was the responsibility of the Bolshevik Party. Once the revolution was successful, Lenin was looked to as the leader of the new communist state.

Stalin continued this communist system after Lenin was done being leader. Stalin's central planning system ensured that the Soviet Union's economy was controlled by the government, as well as the media outlets. This was especially true during World War II.