The Cold War, Containment Policy, and American Society 1945-1975

The end of World War II in 1945 brought not peace but a new and dangerous global rivalry between the United States and the Soviet Union. The two nations that had fought side by side against Nazi Germany and Imperial Japan found themselves almost immediately locked in a struggle that would define the next half-century of world history. This conflict — the Cold War — was not primarily a war of armies and battles, though it produced many hot conflicts around the world. It was fundamentally a clash of ideas, systems, and global visions: American liberal capitalism versus Soviet communism; representative democracy versus one-party dictatorship; a vision of an open international economic order versus a closed sphere of state-controlled economies. The term "Cold War" itself was coined by journalist Herbert Bayard Swope and popularized by columnist Walter Lippmann and later by presidential adviser Bernard Baruch, who used it in a speech to the South Carolina legislature in April 1947. The phrase captured something essential: the intense hostility between the two superpowers, but the absence — except in proxy conflicts — of direct military confrontation. Both sides possessed weapons capable of civilizational destruction, and this mutual deterrence paradoxically kept the peace between them even as it threatened everyone on earth.

The Wartime Alliance and Its Fractures

The wartime alliance between the United States, Britain, and the Soviet Union had always been an alliance of necessity rather than affinity. Winston Churchill famously said that if Hitler invaded Hell, he would at least make a favorable reference to the Devil in the House of Commons. The ideological divide was enormous. American capitalism and Soviet communism were not merely different economic systems; they were competing total visions of human society, human nature, and the proper organization of political life. The United States had intervened in the Russian Civil War in 1918-1920, sending troops to support anti-Bolshevik forces — an action the Soviets never forgot. The United States had not recognized the Soviet government until 1933. Through the 1930s, Soviet purges and the Molotov-Ribbentrop Pact of 1939 — in which Stalin briefly allied with Hitler — deepened American distrust.

The mutual suspicion ran deep. From the Soviet perspective, the Western powers had delayed opening a second front in Europe for two years while the Soviet Union suffered catastrophic losses — some 27 million Soviet citizens would die in what they called the Great Patriotic War, losses on a scale Americans found nearly incomprehensible. Stalin interpreted the delay as a deliberate strategy to let Germany and the USSR bleed each other white. From the American and British perspective, Soviet communism was an aggressive totalitarian ideology committed to world revolution and the overthrow of capitalist governments. Stalin's internal repressions — the gulags, the purges, the show trials — had murdered millions of Soviet citizens and demonstrated the brutal nature of communist rule.

These suspicions were papered over but never resolved during the war. By the time of the conferences at Yalta in February 1945 and Potsdam in July 1945, the cracks in the alliance were already becoming visible. At Yalta, Roosevelt, Churchill, and Stalin negotiated the postwar order while German defeat was imminent. The agreements reached were inherently ambiguous. Stalin promised free elections in Poland and other liberated Eastern European nations. Roosevelt and Churchill, knowing they had no military leverage over Soviet forces already occupying much of Eastern Europe, accepted vague language about "democratic" governments. In return, Stalin agreed to enter the war against Japan within three months of Germany's defeat, and he reaffirmed Soviet participation in the United Nations. American critics would later condemn Yalta as a sellout — FDR "giving away" Eastern Europe to Stalin. This was always somewhat unfair; Roosevelt had little leverage, Soviet armies occupied the territory in question, and Stalin's promises of elections were explicit, even if he never intended to honor them.

By the time of the Potsdam Conference in July 1945, Roosevelt was dead, replaced by Harry S. Truman, who had a much more confrontational attitude toward the Soviets. The atomic bomb had been successfully tested. Truman cryptically mentioned to Stalin that the United States had "a new weapon of unusual destructive force" — Stalin, through Soviet intelligence, already knew about the Manhattan Project. The major disputes at Potsdam concerned Germany and Poland. The Western powers insisted on free elections in Eastern Europe; Stalin interpreted this as hostility to Soviet security interests, given that Germany had twice invaded Russia through Eastern Europe in the twentieth century alone. The conference ended with agreements more in the form of temporary arrangements than genuine settlements. Potsdam was the last meeting of the wartime Big Three as allies. Within months, the alliance had effectively collapsed.

The Soviet Consolidation of Eastern Europe 1945-1948