After the last Allied troops have left the country, and following the provisions of the Austrian Independence Treaty, Austria declares that it will never join a military alliance.

The Austrian State Treaty or Austrian Independence Treaty established Austria as a sovereign state. It was signed on 15 May 1955 in Vienna, at the Schloss Belvedere among the Allied occupying powers and the Austrian government. The neighbouring Federal People's Republic of Yugoslavia acceded to the treaty subsequently. It officially came into force on 27 July 1955.

The Declaration of Neutrality was a declaration by the Austrian Parliament declaring the country permanently neutral. It was enacted on 26 October 1955 as a constitutional act of parliament, i.e., as part of the Constitution of Austria.