Peace treaty concluded in 10th of August 1920 after World War I at Sevres, France, between the Ottoman Empire (Turkey), on the one hand, and the Allies (excluding Russia and the United States) on the other. The treaty, which liquidated the Ottoman Empire and virtually abolished Turkish sovereignty, followed in the main the decisions reached at San Remo.
In Asia, Turkey renounced sovereignty over Mesopotamia (Iraq) and Palestine (including Trans - Jordan), which became British mandates; Syria (including Lebanon), which became a French mandate; and the kingdom of Hejaz. Turkey retained Anatolia but was to grant autonomy to Kurdistan. Armenia became a separate republic under international guarantees, and Smyrna (modern Izmir) and its environs was placed under Greek administration pending a plebiscite to determine its permanent status.
In Europe, Turkey ceded parts of Eastern Thrace and certain Aegean islands to Greece, and the Dodecanese and Rhodes to Italy, retaining only Constantinople (modern Istanbul) and its environs, including the Zone of the Straits (Dardanelles and Bosphorus), which was neutralized and internationalized. The Allies further obtained virtual control over the Turkish economy with the capitulation rights.
The treaty was accepted by the government of Sultan Mehmed Vahdettin VI at Istanbul but was rejected by the rival nationalist government of Kemal Atatürk at Ankara. Atatürk's separate treaty with the USSR and his subsequent victories against the Greeks during the War of Independence forced the Allies to negotiate a new treaty in 1923 (Treaty of Lausanne).