The Potsdam Conference: When and why did the US policy move from one of co-operation to confrontation?

The Potsdam Conference: When and why did the US policy move from one of co-operation to confrontation?
Through a focus on primary source analysis, students investigate how far Truman’s bellicosity towards the Soviet Union was apparent from the outset, or was merely a position he adopted once he was in possession of the atomic bomb.

Part of the new Roots of the Cold War to 1949 unit at ActiveHistory.