President Roosevelt said: „If we try to avoid the fact that we have put a little more emphasis on Lublin`s Poland than on the other two groups from which the new government is to be drawn, we will expose ourselves to accusations that we will try to reverse the decision in Crimea.” Roosevelt acknowledged that, in the words of Admiral William D. Leahy, the Yalta language was so vague that the Soviets would be able to „stretch it from Yalta to Washington without ever breaking it technically.”  It is considered that the agreement on Outer Mongolia and the aforementioned ports and railways will require the agreement of Generalissimo Chiang Kai-shek. The President will take steps to maintain this convergence on the advice of Marshal Stalin. Allied leaders came to Yalta because they knew that an Allies` victory in Europe was almost inevitable, but they were less convinced that the Pacific War was coming to an end. Recognizing that a victory over Japan might require a long-term struggle, the United States and Britain saw a great strategic advantage for Soviet participation in peaceful theatre. At Yalta, Roosevelt and Churchill discussed with Stalin the conditions under which the Soviet Union would go to war with Japan, and all three agreed that the Soviets should have a sphere of influence in Manchuria in exchange for a potentially decisive Soviet participation in the Pacific theatre after Japan`s surrender. These include the southern part of Sachalin, a lease in Port Arthur (now Thehukou), part of the manchury and Kuril Islands. This agreement was the main concrete achievement of the Yalta conference. The Yalta conference took place in an atmosphere of optimism and tension. The empires of Germany and Japan fell to the brink of collapse. Roosevelt and Churchill hoped to establish governments in these areas that would protect democracy and human rights, but they could not ignore Stalin`s military might.
The Soviet leader was determined to maintain Eastern Europe and extend his power elsewhere. The fates of hundreds of millions in Europe and Asia would rest on each Agreement of the Great Three in Yalta. 3. The United States Government should, on behalf of the three powers, consult with the Chinese government and the French provisional government on the decisions taken at this conference on the proposed World Organization. The Prime Minister of the Union of Soviet Socialist Republics, the Prime Minister of the United Kingdom and the President of the United States of America have come together in the common interest of the peoples of their countries and of liberated Europe. Together, they agree to resolve by democratic means, by democratic means, the policies of their three governments in support of the peoples freed from the domination of Nazi Germany and the peoples of the former satellite states of the Axis of Europe, during the temporary period of instability in liberated Europe.