U.S.–Austrian Peace Treaty (1921)
| Signed | 24 August 1921 |
|---|---|
| Location | Vienna, Austria |
| Effective | 8 November 1921 |
| Condition | Ratification by Austria and the United States. |
| Signatories |
 Austria
 United States
|
The U.S.–Austrian Peace Treaty is a peace treaty between the United States and Austria, signed in Vienna on August 24, 1921, in the aftermath of the First World War. This separate peace treaty was required because the United States Senate refused to advise and consent to the ratification of the multilateral Treaty of Saint-Germain-en-Laye of 1919.
Ratifications were exchanged in Vienna on November 8, 1921, and the treaty became effective on the same day. The treaty was registered in League of Nations Treaty Series on November 22, 1921.
During the First World War, Austria – which formed the nucleus of the Austro-Hungarian Empire – was defeated by the Allied Powers, one of which was the United States of America. The US government declared war on Austria-Hungary on December 7, 1917. At the end of the war in 1918, Austria-Hungary disintegrated and Austria was established as an independent republic.
In 1919, the victorious Allied Powers held a peace conference in Paris to formulate peace treaties with the defeated Central Powers. At the conference, a peace treaty with the Austrian government was concluded. Although the US government was among the signatories of that treaty, the Senate refused to ratify the treaty due to opposition to joining the League of Nations.
As a result, the two governments started negotiations for a bilateral peace treaty not connected to the League of Nations. Such a treaty was concluded on August 24, 1921.
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