(Oct. 30, 1918), pact signed at the port of Mudros, on the Aegean island of Lemnos, between the Ottoman Empire and Great Britain (representing the Allied powers) marking the defeat of the Ottoman Empire in World War I (1914–18).

Under the terms of the armistice, the Ottomans surrendered their remaining garrisons in Hejaz, Yemen, Syria, Mesopotamia, Tripolitania, and Cyrenaica; the Allies were to occupy the Straits of the Dardanelles and the Bosporus, Batum (now in southwest Georgia), and the Taurus tunnel system; and the Allies won the right to occupy “in case of disorder” the six Armenian provinces in Anatolia and to seize “any strategic points” in case of a threat to Allied security. The Ottoman army was demobilized, and Turkish ports, railways, and other strategic points were made available for use by the Allies.