the beginnings of the cold war: 1945-1949 By achung719 Feb 7, 1945 Yalta conference May 7, 1945 Hitler defeated Jul 7, 1945 Potsdam conference Mar 7, 1947 the Truman Doctrine is announced Oct 7, 1947 Stalin sets up Cominform Mar 7, 1948 Marshall Aid introduced Jun 7, 1948 USSR blockades Berlin Apr 7, 1949 NATO set up May 7, 1949 Berlin blockade lifted