History of Austria wanting to annex the country to the German Third Reich, resulting in the assassination of Chancellor Engelbert Dollfuss. While the coup failed, Adolf Hitler succeeded in annexing Austria on 12 March 1938 as "Ostmark", until 1945. Austria was partitioned after the Second World War and then in 1955 became the independent sovereign state (Second Republic) that has existed to the present day. In 1995, Austria joined the European Union. The modern state of Austria is considered to have three geographic zones. The biggest third consists of the Alps, which covers 62.8% of the country's landmass. In the north, across the
Christian Social Party (Austria) strongest party after the Social Democrats. With its support the assembly enacted the Habsburg Law concerning the expulsion and the takeover of the assets of the House Habsburg-Lorraine. On 10 September 1919, Chancellor Karl Renner had to sign the Treaty of Saint-Germain, which prohibited any affiliation with Germany. It was ratified by the assembly on 21 October. However, the next year the coalition broke up and Renner resigned on 11 July 1920, succeeded by the Christian Social politician Michael Mayr. Both parties agreed on scheduling new elections and the national assembly dissolved after it had passed the Constitution of Austria