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The Yalta Conference was a summit held from 4 to 11 February 1945 in Crimea, during the Second World War, in which the political leaders of the three main Allied countries made some important decisions on continuation of the conflict, on the future structure of Poland, and on the establishment of the United Nations.
The three protagonists were Franklin Delano Roosevelt, Winston Churchill and Iosif Stalin, heads of the governments of the United States of America, the United Kingdom and the Soviet Union respectively.
The development of the famous conference and the political-diplomatic decisions that were reached gave rise to heated controversies in the context of historiographic analysis and international political controversy. For some, given the origin of the Cold War and the division of Europe into opposing blocs mainly due to aggressive Soviet expansionism, the Yalta Conference represented the last moment of real collaboration between the three great victorious powers of World War II.