The Allied Museum At the end of World War II the victorious Allies divided Berlin into four sectors. Stalin's secret intention was to draw Berlin and then all of Germany into the communist orbit. In 1948 he besieged the city as a means of driving the Americans out of Europe, but the Allies responded by launching the Berlin Air Bridge to preserve its freedom. The Cold War intensified, and in 1961 the Soviets built the Wall to completely encircle the western sectors. The Allied Museum tells the story of those years. It contains many old pictures and aircraft that were specially designed to display the history and course of the war.