Britannica AI Icon
Adding us as a Preferred Source tells Google you trust our content, so our articles show up more often in your Google Search, Discover feed, and AI Overviews.
verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style
Feedback
Corrections? Updates? Omissions? Let us know if you have suggestions to improve this article (requires login).
Thank you for your feedback

Our editors will review what you’ve submitted and determine whether to revise the article.

Treaty of Lausanne, final treaty concluding World War I. It was signed on July 24, 1923, by representatives of Turkey (successor to the Ottoman Empire) on one side and by Britain, France, Italy, Japan, Greece, Romania, and the Kingdom of Serbs, Croats, and Slovenes (Yugoslavia) on the other. The treaty was signed at Lausanne, Switzerland, after a seven-month conference.

The treaty recognized the boundaries of the modern state of Turkey. Turkey made no claim to its former Arab provinces and recognized British possession of Cyprus and Italian possession of the Dodecanese. The Allies dropped their demands of autonomy for Turkish Kurdistan and Turkish cession of territory to Armenia, abandoned claims to spheres of influence in Turkey, and imposed no controls over Turkey’s finances or armed forces. The straits between the Aegean Sea and the Black Sea, which had long been a cause of diplomatic controversy, were declared open to all shipping.

The Editors of Encyclopaedia BritannicaThis article was most recently revised and updated by J.E. Luebering.
Discover the fascinating events that shaped the world, straight from our editors.
By clicking “Sign Up”, you consent to the Britannica Privacy Policy and Terms of Use.