Austrians
Historically, Austrians were regarded as ethnic Germans and viewed themselves as such. Austria was part of the Holy Roman Empire and the German Confederation until the Austro-Prussian war in 1866 which resulted in Prussia expelling Austria from the Confederation. Thus, when Germany was founded as a nation-state in 1871, Austria was not a part of it. In 1867, Austria was reformed into the Austro-Hungarian Empire. After the collapse of the Austro-Hungarian Empire in 1918 at the end of World War I, Austria was reduced to a rump state and adopted and briefly used the name the Republic of German-Austria ("Republik Deutschösterreich") in an attempt for union with the Republic of Germany, but was forbidden due to the Treaty of Saint-Germain-en-Laye (1919). The First Austrian Republic was founded in 1919. The Third Reich annexed Austria with the "Anschluss" in 1938.
Treaty of Saint-Germain-en-Laye (1919)
Article 88 of the treaty required Austria to refrain from directly or indirectly compromising its independence, which meant that Austria could not enter into political or economic union with the German Reich without the agreement of the council of the League of Nations. Accordingly, the new republic's initial self-chosen name of German-Austria () had to be changed to Austria. Many Austrians would come to find this term harsh (especially among the Austrian Germans who were German nationalists of the former Austro-Hungarian Empire), due to Austria's later economic weakness, which was caused by loss of land. The economic weakness of Austria would later lead to support for the idea of "Anschluss" (political union) with Nazi Germany.