With the end of the war in November 1918, the moribund Ottoman Empire was ready to be carved up among the victors, and Greece now expected the Allies to deliver on their promises. In no small measure through the diplomatic efforts of Venizelos, Greece secured Western Thrace in the Treaty of Neuilly in November 1919 and Eastern Thrace and a zone around Smyrna in western Anatolia (already under Greek administration as the Occupation of İzmir since May 1919) in the Treaty of Sèvres of August 1920. The future of Constantinople was left to be determined. But at the same time, a Turkish National Movement rose in Turkey led by Mustafa Kemal (later Kemal Atatürk), who set up a rival government in Ankara and was engaged in fighting the Greek army.