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were prominent Bolshevik leaders who played significant roles in the early years of the Soviet Union. They were members of the Politburo, the highest decision-making body of the Communist Party. Kamenev and Zinoviev were both supporters of Joseph Stalin in the early years of his rule. However, they later became critical of his policies and joined with Leon Trotsky to form the United Opposition. Kamenev and Zinoviev were subsequently expelled from the Communist Party and were later executed during the purges of the 1930s. Kamenev and Zinoviev are significant for their roles in shaping Soviet politics in the 1920s and 1930s and for their opposition to Stalin's policies. Their executions also highlighted the brutality of Stalin's regime.

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