In 1920, the Treaty of Sèvres with the defeated Ottoman Empire granted the island to Greece. The Ottoman government, which signed but did not ratify the treaty, was overthrown by the new Turkish nationalist Government of Mustafa Kemal Atatürk, based in Ankara. After the Greco-Turkish War ended in Greek defeat in Anatolia, and the fall of Lloyd George and his Middle Eastern policies, the western powers agreed to the Treaty of Lausanne with the new Turkish Republic, in 1923. This treaty made the island part of Turkey; but it guaranteed a special autonomous administrative status for Imbros and Tenedos to accommodate the Greeks, and excluded them from the population exchange that took place between Greece and Turkey, due to their presence there as a majority. Article 14 of the treaty provided specific guarantees safeguarding the rights of minorities in both the nations.