During the War of Independence, the Government of the Grand National Assembly commanded the army known as Kuva-yi Milliye ("National Forces"). After the war and victory over the monarchist Constantinople Government, the republican Ankara Government declared the end of the Ottoman Empire and the creation of the Republic of Turkey from its ashes in 1923. The Grand National Assembly is today the parliamentary body of Turkey.
At the time the Ankara Government was proclaimed, there existed another Turkish government in the Allied-occupied Constantinople (now Istanbul), namely the Imperial Ottoman Government, often known as the "Constantinople Government" (as opposed to the nationalist Ankara Government). Once the Grand National Assembly was established, on 23 April 1920, without rejecting at first the legitimacy of the Ottoman Sultanate, the new parliament in Ankara formed its own government within the Assembly. The Ministers were called "Vekil" (Acting) instead of the conventional "Nazır", to keep with the provisional nature of the government.
The map published by The Sphere on 1–5 March 1921: The Angora Government and its Claims The Kemalists or Nationalists control more or less effectively the area shaded. They have been driven away from the Aegean by the Greeks, but claim Thrace, Smyrna, Armenia, and all Mesopotamia down to the Persian Gulf
The Constantinople Government, representing the Ottoman sultanate and the old imperial and monarchical order, initially refused to recognize the Turkish national movement and the Government of the Grand National Assembly in Ankara, holding that it alone was the legitimate government of the Ottoman Empire. It attempted to militarily defeat the Ankara Government using its Kuva-yi Inzibatiye, i.e. the "Forces of Order", commonly known as the "Army of the Caliphate" (as opposed to the GNA's forces, the Kuva-yi Milliye, the "Army of the Nation"), but failed to do so. In 1921, diplomatic teams from both the monarchist Constantinople Government and the republican Ankara Government appeared at the Conference of London. In a surprising move, however, the Ottoman diplomatic team led by Ahmet Tevfik Pasha gave in and allowed the Turkish diplomatic team led by Bekir Sami Kunduh to be the sole representatives of the country at the conference. The Treaty of Lausanne was signed on 24 July 1923, between the representatives of the Allies and of Ankara, thus officially recognizing the government of Ankara as the legitimate Turkish government.
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