Austria
The Treaty of Saint-Germain of 1919 (for Hungary the Treaty of Trianon of 1920) confirmed and consolidated the new order of Central Europe which to a great extent had been established in November 1918, creating new states and altering others. The German-speaking parts of Austria which had been part of Austria-Hungary were reduced to a rump state named The Republic of German-Austria (German: "Republik Deutschösterreich"). The desire for "Anschluss" (annexation of Austria to Germany) was a popular opinion shared by all social circles in both Austria and Germany. On 12 November, German-Austria was declared a republic, and named Social Democrat Karl Renner as provisional chancellor. On the same day it drafted a provisional constitution that stated that "German-Austria is a democratic republic" (Article 1) and "German-Austria is an integral part of the German reich" (Article 2). The Treaty of Saint Germain and the Treaty of Versailles explicitly forbid union between Austria and Germany. The treaties also forced German-Austria to rename itself as "Republic of Austria" which consequently led to the first Austrian Republic.
Austria
The 1955 Austrian State Treaty ended the occupation of Austria following World War II and recognised Austria as an independent and sovereign state. On 26 October 1955, the Federal Assembly passed a constitutional article in which "Austria declares of her own free will her perpetual neutrality". The second section of this law stated that "in all future times Austria will not join any military alliances and will not permit the establishment of any foreign military bases on her territory". Since then, Austria has shaped its foreign policy on the basis of neutrality, but rather different from the neutrality of Switzerland.