Answer:
The difference in the leaders involved in the two conferences was a major factor in the differentiation between Yalta and Potsdam. At Yalta, the Big Three was composed of British Prime Minister Winston Churchill, U.S. President Franklin Delano Roosevelt, and Soviet Premier Joseph Stalin. At Potsdam, Attlee replaced Churchill after his defeat in the British elections, and Truman took Roosevelt's position. The only constant figure in the conferences was Stalin, the leader of one of the most controversial nations in the world. As previously mentioned, the only issue the three countries truly saw eye-to-eye on was eradicating the Nazi presence from the world. Two capitalist nations allied with a vehemently communist one already poses some problems with communications, and the change from Roosevelt to Truman between the conferences only added to the discrepancies
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