Joseph Stalin and Leon Trotsky were the main rivals to become leader of the Soviet Union after Lenin died. Other rivals were Grigori Zinoviev, Lev Kamenev and Nikolai Bukharin, but they were fairly minor compared to Trotsky and Stalin.
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Brezhnev became the Soviet leader after Khruschev.
Answer:Joseph Stalin was the leader of the Soviet Union.
The Soviet Union does not have a leader as it ceased to exist in 1991.
Boris Yeltsin was the Russian leader who was known for opposing a coup in the Soviet Union from a tank.
The final leader of the communist soviet union was Mikhail Gorbachev.