Politburo of the Communist Party of the Soviet Union
The Political Bureau of the Central Committee of the Communist Party of the Soviet Union, abbreviated as Politburo, was the de facto highest executive authority in the Communist Party of the Soviet Union (CPSU). While elected by and formally accountable to the Central Committee, in practice the Politburo operated as the ruling body of Soviet Russia and the Soviet Union from its creation in 1919 until the party's dissolution in 1991.
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