Secretariat of the Communist Party of the Soviet Union the CPSU, who was also a Politburo member, was the leader of the Secretariat and of the Party. Dual membership in the Secretariat and the Politburo was in practice reserved for two or three very senior members of the Soviet leadership, and in the post-Stalin era (after March 1953) was a stepping-stone to ultimate power. The last five Soviet leaders (Nikita Khrushchev, Leonid Brezhnev, Yuri Andropov, Konstantin Chernenko and Mikhail Gorbachev) were all senior Secretaries before becoming First or General Secretaries. Additionally, Georgy Malenkov was briefly reckoned as the leader of the Party for a week after Stalin's death by
Railway system of the Soviet Union Railway system of the Soviet Union The Soviet Railways (Russian: Cоветские железные дороги (CЖД)) was the state owned national railway system of the Soviet Union, headquartered in Moscow. The railway started operations in December 1922, shortly after the formation of the Soviet Union. It operated until the dissolution of the Soviet Union in December 1991. The Soviet Railways were the largest unified railway in the world and the backbone of the Soviet Union's economy. Soviet Railways greatly upgraded and expanded the Russian Imperial Railways to meet the demands of the Soviet Union. The railway was directly under the control of