Yalta Conference, (February 4–11, 1945), major World War II conference of the three chief Allied leaders—Pres. Franklin D. Roosevelt of the United States, Prime Minister Winston Churchill of the United Kingdom, and Premier Joseph Stalin of the Soviet Union—which met at Yalta in Crimea to plan the final defeat and occupation of Nazi Germany.

Yalta Conference (From left) Winston Churchill, Franklin Roosevelt, and Joseph Stalin at the Yalta Conference, 1945. Photograph from the Army Signal Corps Collection in the U.S. National Archives

It had already been decided that Germany would be divided into occupied zones administered by U.S., British, French, and Soviet forces. The conferees accepted the principle that the Allies had no duty toward the Germans except to provide minimum subsistence, declared that the German military industry would be abolished or confiscated, and agreed that major war criminals would be tried before an international court, which subsequently presided at Nürnberg. The determination of reparations was assigned to a commission.

Yalta Conference Allied delegations meeting on the first day of the Yalta Conference. The Soviets, led by Joseph Stalin, are at left; the Americans, led by Pres. Franklin D. Roosevelt, are at right; and the British, led by Prime Minister Winston Churchill (back to camera), are in the foreground. Encyclopædia Britannica, Inc.

How to deal with the defeated or liberated countries of eastern Europe was the main problem discussed at the conference. The agreements reached, which were accepted by Stalin, called for “interim governmental authorities broadly representative of all democratic elements in the population…and the earliest possible establishment through free elections of governments responsive to the will of the people.” Britain and the United States supported a Polish government-in-exile in London, while the Soviets supported a communist-dominated Polish committee of national liberation in Lublin. Neither the Western Allies nor the Soviet Union would change its allegiance, so they could only agree that the Lublin committee would be broadened to include representatives of other Polish political groups, upon which the Allies would recognize it as a provisional government of national unity that would hold free elections to choose a successor government. Poland’s future frontiers were also discussed but not decided.

Yalta Conference The flags of the United States, the Soviet Union, and the United Kingdom hoisted over the Yalta Conference, February 1945. U.S. Army photograph

Regarding the Pacific Theatre, a secret protocol stipulated that, in return for the Soviet Union’s entering the war against Japan within “two or three months” after Germany’s surrender, the U.S.S.R. would obtain from Japan the Kuril Islands and regain the territory lost in the Russo-Japanese War of 1904–05 (including the southern part of Sakhalin Island), and the status quo in pro-Soviet Outer Mongolia would be maintained. Stalin agreed to sign a pact of alliance and friendship with China.

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The United Nations organization charter had already been drafted, and the conferees worked out a compromise formula for voting in the Security Council. The Soviets withdrew their claim that all 16 Soviet republics should have membership in the General Assembly.

After the agreements reached at Yalta were made public in 1946, they were harshly criticized in the United States. This was because, as events turned out, Stalin failed to keep his promise that free elections would be held in Poland, Czechoslovakia, Hungary, Romania, and Bulgaria. Instead, communist governments were established in all those countries, noncommunist political parties were suppressed, and genuinely democratic elections were never held. At the time of the Yalta Conference, both Roosevelt and Churchill had trusted Stalin and believed that he would keep his word. Neither leader had suspected that Stalin intended that all the popular front governments in Europe would be taken over by communists. Roosevelt and Churchill were further inclined to assent to the Yalta agreements because they assumed, mistakenly as it turned out, that Soviet assistance would be sorely needed to defeat the Japanese in the Pacific and Manchuria. In any case, the Soviet Union was the military occupier of eastern Europe at the war’s end, and so there was little the Western democracies could do to enforce the promises made by Stalin at Yalta. The formulation by American delegation member James F. Byrnes, soon to be secretary of state (1945–47), was apt: “It was not a question of what we would let the Russians do, but what we could get the Russians to do.”