Why was the Yalta Conference broken?

The Yalta Conference was characterized by growing tensions among the Allied leaders—Franklin D. Roosevelt, Winston Churchill, and Joseph Stalin—over post-war policies, territorial disputes, and the future of Eastern Europe. Although they reached agreements on several issues, the differing ideologies and ambitions of the Soviet Union and the Western powers led to misunderstandings and mistrust. The realization that Stalin's intentions in Eastern Europe were not aligned with the principles of self-determination and democratic governance further exacerbated these tensions, ultimately contributing to the breakdown of cooperation and the onset of the Cold War.