This series goes back to the end of World War II, where the world was struggling to recover after the death and destruction caused by the six-year global conflict. Nations had to rebuilt; people had to heal; and at the Yalta Conference on 4th February 1945, the Big Three were all optimistic: victory was in no doubt, and the accord that they had achieved seemed likely to preserve the values they had fought for. However, in just a few months, the Allies would reveal themselves as divided and rivals in peace. How can such a rapid failure of a real effort at entente be explained?