Truman was much more suspicious of the Soviets than Roosevelt and increasingly suspicious of Stalin`s intentions.  Truman and his advisers regarded Soviet action in Eastern Europe as aggressive expansionism, incompatible with the agreements Stalin had been obliged to in Yalta in February. In addition, Truman discovered possible complications elsewhere when Stalin rejected Stalin Churchill`s proposal to withdraw the Allies from Iran before the timetable agreed at the Tehran conference. The Potsdam conference was the only time Truman met Stalin himself.   The foreign ministers of the three governments – James F. Byrnes, V.M Molotov and Anthony Eden and Ernest Bevin – also attended the conference, as well as other advisers. 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 end of the conference, the three heads of government agreed on the following measures. All other issues should be resolved before the final peace conference, which should be convened as soon as possible. The Potsdam conference took place in Potsdam from 17 July to 2 August 1945. (In some older documents, it is also called the Berlin Conference of the three heads of government of the USSR, the United States and the United Kingdom.   Participants were the Soviet Union, the United Kingdom and the United States, represented by Prime Minister Joseph Stalin, Prime Minister Winston Churchill and Clement Attlee and President Harry S.
Truman. They met to decide how to manage Germany, which nine weeks earlier, on 8 May (Victory Day in Europe), had declared itself ready to surrender unconditionally. Among the objectives of the conference were the establishment of the post-war order, the issues of the peace treaty and the fight against the effects of war. France, which had been excluded from the conference, opposed the implementation of the Potsdam agreements in its zone of occupation. In particular, the French refused to relocate Germans expelled from the east. Moreover, the French would not have accepted any obligation to comply with the Potsdam agreements in the procedures of the Allied Control Council; In particular, they reserved the right to block proposals to create common policies and institutions throughout Germany and anything that could lead to the final formation of a single German government.  The Soviet Union presented to the Conference a proposal on the territories related to the mandate, which corresponded to the objectives set at the Yalta Conference and the United Nations Charter. At the conference, Truman called Stalin a “powerful new weapon” unspecified. Towards the end of the conference, on 26 July, potsdam`s declaration issued an ultimatum to Japan to surrender unconditionally or to face the “rapid and total destruction” that the new bomb did not mention, but promised that “it was not the intention to enslave Japan.”