The Early Cold War Study Pack

• •Ideological Incompatibility Between Capitalism and Communism
• •The United States championed liberal democracy and free-market capitalism, while the Soviet Union under Joseph Stalin promoted a one-party communist state and centrally planned economy, making genuine cooperation structurally difficult.
• •American distrust of the Soviet Union predated World War II — the U.S. had refused to recognize the Soviet government until 1933 and had sent troops to oppose the Bolsheviks during the Russian Civil War.
• •Wartime Alliance and Postwar Disagreements at Yalta and Potsdam
• •At the Yalta Conference (February 1945), Franklin Roosevelt, Winston Churchill, and Stalin agreed that liberated Eastern European nations would hold free elections, but Stalin interpreted 'friendly governments' on Soviet borders as a security necessity, not a democratic obligation.
• •By the Potsdam Conference (July 1945), Harry Truman was far less willing to accommodate Soviet demands, and disagreements over German reparations, borders, and Eastern Europe signaled that the wartime alliance was fracturing.

Soviet Expansion into Eastern Europe

• •Between 1945 and 1948, the Soviet Union installed communist governments in Poland, Czechoslovakia, Hungary, Romania, Bulgaria, and East Germany — either through rigged elections, political purges, or direct pressure.
• •Winston Churchill described this division in his 1946 'Iron Curtain' speech, popularizing the image of a Europe split between free western nations and Soviet-dominated eastern satellites.

• •George Kennan and the Intellectual Foundation of Containment
• •Diplomat George Kennan articulated containment in his 1946 'Long Telegram' from Moscow and in his anonymous 1947 'X Article' published in Foreign Affairs, arguing that Soviet expansionism was driven by internal political needs and could be checked by firm, patient resistance.
• •Kennan emphasized political and economic pressure over military confrontation, though later policymakers applied containment far more militarily than he intended.

The Truman Doctrine (1947)

• •When Britain announced it could no longer afford to support the Greek government against a communist insurgency, Truman asked Congress to fund both Greece and Turkey, framing the request as a universal American commitment to defending free peoples against communist pressure.
• •Congress approved $400 million in aid, and the Truman Doctrine established a precedent that the United States would intervene — financially and militarily — almost anywhere communism threatened to advance.

The Marshall Plan (1948)

• •Secretary of State George Marshall proposed a massive economic recovery program for Western Europe, reasoning that economic desperation was communism's most effective recruitment tool.
• •Congress authorized roughly $13 billion over four years; the aid went to sixteen Western European nations and succeeded in rebuilding industrial production and stabilizing democratic governments in France, Italy, West Germany, and elsewhere.
• •The Soviet Union rejected participation and pressured its Eastern European satellites to do the same, deepening the economic division of the continent.