Cold War 1941-91 By RT139 Period: 1940 to Apr 12, 1945 US - Franklin Roosevelt Period: 1940 to Jul 26, 1945 Britain - Winston Churchill Period: 1940 to Oct 16, 1952 USSR - Joseph Stalin 1941 Grand Alliance Formed Period: Apr 12, 1945 to Jan 12, 1953 US - Harry Truman Period: Jul 26, 1945 to Oct 26, 1951 Britain - Clement Attlee Period: Sep 7, 1953 to Oct 14, 1964 USSR - Nikita Khruschev