Explain the significance of Yalta cold war Potsdam satellite nations iron curtain

Yalta Conference is about the discussion on the action plan when the war will end. During this conference, the motion to establish the UN was set.

Potsdam Conference was the meeting of the three leaders at that time, namely Stallin, Truman, Churchill. This conference added tensions between the Soviet Union, and US.

Iron Curtain Speech set up cold was tension and was known as the most famous speech during this time.