The Potsdam Conference was held from July to August 1945, which was attended by Clement Attlee (who had replaced Churchill as Prime Minister) and President Harry S. Truman (who represented the United States after Roosevelt`s death).  In Potsdam, the Soviets rejected claims that they were involved in the affairs of Romania, Bulgaria and Hungary.  The conference resulted in (1) the Potsdam Declaration on the surrender of Japan, and (2) the Potsdam Agreement on the Soviet annexation of former Polish territory east of the Curzon Line and, in a possible final treaty ending World War II, for the annexation of parts of Germany east of the Oder-Neisse Line to Poland. and North Prussia in the Soviet Union. The Kanta conference ended with a compromise. Roosevelt and Churchill accepted Stalin`s demands for Poland and the United Nations. In exchange, Stalin agreed to hold elections in Poland so that the people could elect their own government. He also agreed to declare war on Japan shortly after the German surrender. On March 1, Roosevelt assured Congress that “I come from Crimea with the firm conviction that we have begun on the path to a world of peace.”  However, the Western powers soon realized that Stalin would not keep his promise of free elections for Poland. After receiving in London, after Kanta, serious criticism of the atrocities committed by Soviet troops in Poland, Churchill wrote Roosevelt a desperate letter referring to the widespread deportations and liquidation of Poles from the opposition by the Soviets.
 On March 11, Roosevelt Churchill replied: “I certainly agree that we must be sure of a correct interpretation of the decision in Crimea. You rightly assume that neither the government nor the people of this country will support participation in a scam or a simple upturn by the Government of Lubli, and the solution must be as we imagined it in Kanta.  But as his troops occupied much of Germany and Eastern Europe, Stalin was able to effectively ratify the concessions he had won at Kanta and take advantage of his advantage over Truman and Churchill (replaced by Prime Minister Clement Atlee during the conference). In March 1946, barely a year after von Yalta`s lecture, Churchill gave his famous speech claiming that an “Iron Curtain” had fallen on Eastern Europe, signaling the definitive end of cooperation between the Soviet Union and its Western allies and the beginning of the Cold War. The big three also agreed that democracies will be erected, that all European countries and former satellites liberated from the Axis powers will hold free elections, and that order will be restored.  In this regard, they promised to rebuild the occupied countries through processes that allowed them to “create democratic institutions of their own choosing … . .