What major decision was made at the Yalta Conference regarding post-war Europe?

The decision at the Yalta Conference that included both the establishment of the United Nations and the control of parts of Poland by Russia reflects the strategic and political realignments that were being negotiated among the Allied powers towards the end of World War II.

During the conference, held in February 1945, Franklin D. Roosevelt, Winston Churchill, and Joseph Stalin met to discuss the reorganization of post-war Europe and outline their plans for maintaining peace. The establishment of the United Nations was a significant outcome of this conference, as the leaders sought to create an international organization aimed at preventing future conflicts and fostering cooperation among nations.

Additionally, the agreement that the Soviet Union would exert influence over parts of Eastern Europe, particularly Poland, was crucial. This decision was shaped by the realities of the war, with the Soviet army already occupying territories in Eastern Europe. The Allies acknowledged the USSR's significant role in the defeat of Nazi Germany and recognized that Soviet influence in the region would be a factor in post-war stability.

This choice highlights the complexities of coalition politics during and after the war, as well as the beginning of the divisions that would later define the Cold War. It showcases the willingness of the Allied leaders to make compromises for the sake of a more stable post