How (and to what Extent) Did the Conferences at Yalta and Potsdam (1945) Contribute to the Origin of the Cold War?

The Cold War which started in the late 1940's and ended in 1989 was one of the most contentious events of the 20th century. Even today, new information is surfacing about the war and its causes. The term Cold War is used as the two superpowers USA and USSR never completely reached boiling point. One debating point that historians still argue over is the origin of the war. There have been different points of views which evolved during and after the war.
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