The ultimate goal of the Nazi-Germans was to become a regional hegemon. At the same time, Hitler's violation of the Treaty of Versailles, the annexation of Austria and the incorporation of the Czechoslovak Sudetenland are undoubtedly proof that Germany's survival as a state has been ensured. Through war with Poland and Western Europe Germany gained territory and expanded its relative power clearly to the detriment of the defeated states and Great Britain. The war with Russia in 1941 aimed to expand German territory; “Lebensraum (living space for the German population)”; and strengthen the German economy by securing oil resources in the Caucasus. As a result, Germany defeated by the Western Allies and the Soviet Union in 1945 faced, for the second time in thirty years, the decline from a great power to a weak one. In the years that followed, the United States and the Soviet Union moved as the two remaining great powers to expand their spheres of influence and defend each other. Above all, the outcome of the Second World War had significantly shaped the international order and this bipolar order would last around forty years.