On April 21, 1945, Joseph Stalin signed a treaty of friendship and mutual assistance between the USSR and Poland. Post-war planning further weighed on relations between Allied leaders. When the Big Three last met in Yalta in February 1945, the Allies joined Germany from both East and West. Several important issues had to be resolved, including the fate of Poland, which was then occupied by Soviet troops advancing towards Berlin. Stalin called for part of Poland to be transferred to the Soviet Union and for a pro-Soviet communist government in the city of Lublin to control the rest of the country. He also insisted that each of the Soviet Union`s satellite republics in Eastern Europe should obtain separate votes at the newly created United Nations, while those countries were controlled from Moscow. This alerted Roosevelt and Churchill, but they were powerless to force Stalin to guarantee a democratic and independent Poland. Stalin`s armies already occupied most of the region and Western allies could not force them without fighting the Soviet Union. In addition, Roosevelt hoped to obtain Stalin`s help in ending Japan.
At the end of the summit, the trio agreed to demand the unconditional surrender of Germany and the division of the country – and the capital Berlin – into four occupied areas managed by American, British, French and Soviet forces. They took into account the payment of German repairs «as far as possible» with the amount to be fixed at a later date. When Roosevelt`s advisers warned him that a Japanese invasion of a million Americans could live and that the atomic bomb was still unnoticed, Stalin`s president received a secret promise to conquer Japan within three months of Germany`s surrender in exchange for diplomatic recognition of his satellite state, Mongolia, and the re-establishment of territories lost in the Russo-Japanese War. Stalin also accepted the formation of the United Nations after the Soviet Union gained power in the Security Council. Churchill and U.S. President Franklin Delano Roosevelt had been working together for some time when the United States went to war in 1941. Roosevelt believed that a British victory on the axis was in America`s best interest, while Churchill believed that such a victory was not possible without American help. In 1940, the two heads of state worked to find ways for America to help Britain continue without violating its neutrality. The following year, they met off the coast of Newfoundland to begin planning for the post-war world. The Soviet Prime Minister, Joseph Stalin, was a late complement to the Big Three. On New Year`s Day 1942, representatives of the three nations signed the United Nations Declaration and pledged to unite to defeat the Axis powers. The three most important men of the Versailles Conference – the Big Three – were the three great three major countries victorious after the First World War.
They are sometimes called the allied powers, sometimes the victors and sometimes the big three. These include Great Britain, France and the United States of America. Each of these countries had fought side by side during the First World War. During World War II, the three great Allied powers – Britain, the United States and the Soviet Union – formed a great alliance that was the key to victory.