After the war, “Germany as a whole” would consist exclusively of aggregate zones of the affected areas of occupation. All the former German territories east of the Oder-Neisse line were excluded from the Soviet zone of occupation, so they were excluded from “Germany as a whole”. The foreign ministers of the three governments – James F. Byrnes, V.M Molotov and Anthony Eden and Ernest Bevin – and other advisers also attended the conference. Nine meetings were held from July 17 to 25. Subsequently, the conference was suspended for two days, with the results of the British general election announced. In July, Clement Attlee defeated Winston Churchill and replaced him as British representative, while the new British Foreign Secretary, Ernest Bevin, replaced Anthony Eden. Four days of discussions followed. During the conference, the three heads of government held meetings with their foreign secretaries as well as only meetings of foreign secretaries. The committees that were set up by the conference for pre-processing of questions before the conference also met daily. Important decisions and agreements were adopted and opinions were exchanged on many other issues. The Council of Foreign Ministers, which was then set up by the conference, continued to examine these issues.
The conference ended with a closer relationship between the three governments as a result of their cooperation. This renewed confidence in the fact that they and the other United Nations would ensure a just and lasting peace.   At the Yalta conference, France received an area of occupation within Germany. France participated in the Berlin Declaration and is expected to be a member of the Allied Control Council on an equal footing. However, at the request of the Americans, Charles de Gaulle was not invited to Potsdam, as he had been denied representation in Yalta. The little diplomatic thing was for him a cause of deep and persistent resentment.  The reasons for this omission were the long-standing personal antagonism between Roosevelt and de Gaulle, the continuing quarrels over the French and American zones of occupation, and the expected conflicts of interest over French Indochina.  It also reflected the British and American judgment that the French objectives on many of the conference agenda were probably at odds with the agreed Anglo-American objectives. Shortly before the conference began on July 16, 1945, the United States successfully detonated a nuclear bomb at its test site in the New Mexico desert. When Truman first reported on the success of the experiment, he would have noticed that if it worked… I`m probably going to have a hammer on these guys. In Potsdam, Truman decided to tell Stalin that the United States possessed a new weapon of unusual destructive force. Although Stalin already knew details about the Manhattan project through his spy networks, he could complain about this treatment and the fact that there were secrets between alleged allies. The main objective of the Potsdam conference was to put an end to the post-war period and to put into practice all that had been agreed in Yalta. While the Yalta meeting was rather friendly, the Potsdam conference was marked by differences of opinion that were the result of some important changes since the Yalta conference. The Potsdam conference ended on a bleak note. By the end, Truman had become even more convinced that he had to pursue a harsh policy towards the Soviets.
Stalin was more convinced that the United States and Great Britain had conspired against the Soviet Union. As for Churchill, he was not present at the closing ceremony. His party lost in the English election and was replaced in the middle of the conference by new Prime Minister Clement Attlee.