Why did Truman object at yalta conference?

At the Yalta Conference in February 1945, President Harry Truman objected to some of the concessions made to Soviet leader Joseph Stalin, particularly regarding the fate of Eastern Europe. Truman was concerned about the potential establishment of Soviet-dominated communist regimes in countries like Poland and Hungary, fearing it would undermine democracy and self-determination. His objections reflected a growing awareness of the ideological divide between the U.S. and the Soviet Union, laying the groundwork for the Cold War tensions that would follow.