Cominform

The Communist Information Bureau was a Soviet-led organization founded in 1947 to coordinate communist parties in Europe and enforce ideological discipline.

Zhdanov Doctrine: Andrei Zhdanov’s 1947 formulation divided the world into imperialist and anti-imperialist camps led by the United States and Soviet Union. This ideological framework justified Cominform’s coordination of communist parties against Western influence.
Cominform Resolution on Yugoslavia: A 1948 Cominform statement accusing the Communist Party of Yugoslavia of departing from Marxism-Leninism. The resolution shows how the bureau used public censure to discipline a member party.
Andrei Zhdanov: A senior Soviet communist official who articulated the Zhdanov Doctrine and helped establish Cominform. He presented the ideological framework at the bureau’s founding meeting.
Tito–Stalin split: The 1948 rupture between Yugoslav leader Josip Broz Tito and Soviet leader Joseph Stalin over Yugoslavia’s independence. The split became Cominform’s defining conflict and led to Yugoslavia’s expulsion.
Truman Doctrine: The 1947 United States policy pledged support to countries resisting communist pressure, first Greece and Turkey. Its announcement helped sharpen the East–West division that preceded Cominform’s creation.
Communist Party of the Soviet Union: The ruling communist party of the Soviet Union and the principal political force directing Soviet state policy. The Soviet party supplied Cominform’s dominant authority and ideological line.
Joseph Stalin: The Soviet leader from the mid-1920s until his death in 1953, whose rule centralized political power. Stalin’s effort to control communist parties underpinned the bureau’s creation and discipline.
Eastern Bloc: The group of European states aligned politically and militarily with the Soviet Union during the Cold War. Cominform sought to strengthen ideological unity across this Soviet-aligned region.
Marshall Plan: A United States program launched in 1948 that provided economic aid to rebuild European countries after World War II. Moscow treated participation in this aid program as a challenge to Soviet influence in Europe.
Communist Party of Yugoslavia: The communist party that led Yugoslavia after World War II under Josip Broz Tito. Its refusal to accept Soviet direction exposed the limits of Cominform’s authority.

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