What events at the end of World War II led to the division of Europe and rise of Iron Curtain?

Discuss Origins of the Cold War in 1940s-50s Europe: What events at the end of World War II led to the division of Europe and rise of Iron Curtain? What did Stalin want at the end of WWII? What did the US want? What did the US do to help Western Europe and why was this a problem for Soviets? What did the Soviet do to Eastern Europe, East Germany and Berlin? What did Truman do to hold onto Western Europe, West Germany and Berlin? What was ‘containment’ and where did the US apply it? What events led to US-Soviet conflict over Berlin? What was the Berlin Blockade and what happened during the Berlin Airlift? How did it change the German view of Americans? How did the Iron Curtain Line harden after the Berlin Airlift?