Cold war By gaby.yanes Feb 7, 1945 yalta confrence May 7, 1945 Hitler defeated Jul 7, 1945 postdam conference Mar 7, 1947 truman doctrine announced Oct 7, 1947 stalin sets up cominform Mar 7, 1948 Marshall aid introduced Jun 7, 1948 ussr blocks berlin Apr 7, 1949 nato set up May 7, 1950 berlin bloclade lifted