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 under National Socialism
In 1918, at the end of World War I, with the breakup of the multi-ethnic Austro-Hungarian Empire, and with the abolition of the Habsburg monarchy, there were three major political groups competing with one another in the young republic of Austria: the Social Democratic Party of Austria (SDAP), Christian Social Party (CS), and the nationalist Great German Union ("Großdeutsche Vereinigung"), which became the Greater German People's Party ("Großdeutsche Volkspartei", or GVP) in 1920. At the time, smaller parties such as the Communist Party of Austria ("Kommunistische Partei Österreichs", or KPÖ) and the Austrian National Socialists ("Deutsche Nationalsozialistische Arbeiterpartei", or DNSAP) were neither present in the Reichsrat (Imperial Council) nor the Nationalrat (National Council).