The Potsdam Conference had broken the war alliance between the United States and the USSR. There were several reasons for this: very little was agreed in Potsdam. The three leaders of the time had many disagreements: the first, that of Kanta, took place in February 1945, a few months before the unconditional surrender of Nazi Germany on May 8. Soviet Prime Minister Joseph Stalin, British Prime Minister Winston Churchill and US President Franklin D. Roosevelt came together to have serious discussions on Europe during the conference. For one reason or another, they first agreed that it would be better to divide Germany into four zones. The Potsdam conference was after the Yalta conference. The Potsdam took place in August 1945. Allied troops gathered again on 17 July of the same year for the Potsdam Conference. At the summit to be held until the 2nd the Heads of State and Government of the Soviet Union, the United States and the United Kingdom took part. By this time, Roosevelt was dead and Churchill had lost the 1945 election, so during the conference there were some open disagreements. The purpose of the meeting was to discuss how best to punish Nazi Germany and to build on the decisions of von Naalta`s conference.
Roosevelt, Churchill and Stalin met from February 4 to 11 in the city of Kanta, in Russian Crimea, and arrived with their own agendas for the conference. For Stalin, the main objectives were economic aid to Russia after the war and the recognition by the United States and Britain of a Soviet sphere of influence in Eastern Europe. Churchill had in mind the protection of the British Empire, but he also wanted to clarify the status of post-war Germany. Roosevelt`s goals were a consensus on the creation of the United Nations and the Soviet agreement to go to war against Japan as soon as Hitler was defeated. None of them left Kanta completely satisfied. There has been no definitive definition of financial assistance to Russia. Many questions concerning Germany have been postponed for further discussion. As for the United Nations, Stalin wanted the sixteen Soviet republics to be represented in the General Assembly, but opted for three (the Soviet Union as a whole, Belarus and Ukraine).
The Soviets, however, agreed to participate in the war against Japan, 90 days after the defeat of Hitler`s Germany. When the Cold War became a reality in the years following Von Yalta`s conference, many critics of Roosevelt`s foreign policy accused him of “selling himself” at the meeting and letting Stalin naively go away. But it seems doubtful that Roosevelt had a great choice. He was able to ensure Russian participation in the war against Japan (Russia declared war on Japan on August 8, 1945), established the fundamental principles of the United Nations and did as much as possible to resolve the Polish question. As World War II was still raging, his main interest was the maintenance of the Grand Alliance. He believed that problematic political issues could be postponed and resolved after the war. Unfortunately, Roosevelt never had that chance — almost exactly two months after the conference ended, Roosevelt had a stroke and died. Communist parties have come to power far beyond their numbers and everywhere aspire to totalitarian control.