With regard to Poland, the yalta report adds that the provisional government should ”be obliged to hold free and unimpeded elections as soon as possible, on the basis of universal suffrage and secret ballot”.  The agreement could not mask the importance of adhering to the short-term pro-Soviet control of the Lublin government and eliminating the language that requires supervised elections.  Churchill defended his action in Yalta during a three-day parliamentary debate that began on 27 February and ended with a vote of confidence. During the debate, many MPs criticized Churchill and expressed deep reservations about Yalta and his support for Poland, 25 of whom drafted an amendment to protest the agreement.  But while the USSR triumphed militarily – about three-quarters of all German victims of the war died on the Eastern Front – the country had suffered terribly. The United Kingdom had declared war in September 1939 because Germany had penetrated its allies, Poland, and Churchill was determined to guarantee the country`s freedom. However, the United Kingdom had also paid a high price for victory and was now essentially bankrupt. Churchill hoped that the United States would support him and that Stalin would rise. In addition, the Soviets agreed to join the UN because they obtained a secret understanding of a veto-ruled formula for permanent members of the Security Council, allowing each country to block undesirable decisions. Mr Churchill, despite the agreements, was deeply concerned about the situation in Eastern Europe.
He asked his troops and Americans to move as far east as possible before the end of the war. On March 1, Roosevelt assured Congress: ”I come from Crimea with the firm conviction that we have begun on the road 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 considerable criticism in London after Yalta of the atrocities committed by Soviet troops in Poland, Churchill wrote a desperate letter to Roosevelt in which he referred to the large-scale deportations and liquidations of opposition Poles by the Soviets.  On March 11, Roosevelt replied to Churchill and wrote, ”I am sure we must stand firm on a correct interpretation of Crimea`s decision. They rightly believe that neither the government nor the people of this country will support participation in fraud or mere deception by the Lublin government, and the solution must be as we imagined it in Yalta.  At that time, the Soviet army had occupied Poland entirely and held much of Eastern Europe with a military power three times greater than the Allied forces in the West. [Citation required] The declaration of the liberated Europe has little to do to dispel the sphere of influence of the agreements that had been incorporated into ceasefire agreements. The first reaction to the Yalta Accords was solemn.
Roosevelt and many other Americans saw this as proof that the spirit of US-Soviet war cooperation would be transmitted until the post-war period. But this feeling was only short-lived. With the death of Franklin D. Roosevelt on April 12, 1945, Harry S. Truman became the 33rd President of the United States. At the end of April, the new government clashed with the Soviets over its influence in Eastern Europe and the United Nations. Concerned about the lack of cooperation felt by the Soviets, many Americans began to criticize the way Roosevelt negotiated the Yalta negotiations.