e Allied and Associated Powers and Ottoman Empire at Sèvres on 10 August 1920, the Treaty of Sèvres promised to maintain the existence of the Armenian republic and to attach the former territories of Ottoman Armenia to it. Because the new borders of Armenia were to be drawn by United States President Woodrow Wilson, Ottoman Armenia is also referred to as "Wilsonian Armenia." In addition, just days prior, on 5 August 1920, Mihran Damadian of the Armenian National Union, the de facto Armenian administration in Cilicia, declared the independence of Cilicia as an Armenian autonomous republic under French protectorate.
There was even consideration of possibly making Armenia a mandate under the protection of the United States. The treaty, however, was rejected by the Turkish National Movement, and never came into effect. The movement, under Mustafa Kemal Atatürk, used the treaty as the occasion to declare itself the rightful government of Turkey, replacing the monarchy based in Istanbul with a republic based in Ankara.
In 1920, Turkish nationalist forces invaded the fledgling Armenian republic from the east and the Turkish-Armenian War began. Turkish forces under the command of Kazım Karabekir captured Armenian territories that Russia had annexed in the aftermath of the 1877–1878 Russo-Turkish War and occupied the old city of Alexandropol (present-day Gyumri). The violent conflict finally concluded with the Treaty of Alexandropol on 2 December 1920.
The treaty forced Armenia to disarm most of its military forces, cede more than 50% of its pre-war territory, and to give up all the "Wilsonian Armenia" granted to it at the Sèvres treaty. Simultaneously, the Soviet Eleventh Army, under the command of Grigoriy Ordzhonikidze, invaded Armenia at Karavansarai (present-day Ijevan) on 29 November. By 4 December, Ordzhonikidze's forces entered Yerevan and the short-lived Armenian republic collapsed.
Soviet Armenia
Armenia was annexed
