Treaty of Ankara (1921)

The signatories were French diplomat Henry Franklin-Bouillon and Turkish foreign minister Yusuf Kemal Bey.

Based on the terms of the agreement, the French acknowledged the end of the Franco-Turkish War and ceded large areas to Turkey.

From west to east, the cities and districts of Adana, Osmaniye, Marash, Aintab, Kilis, Urfa, Mardin, Nusaybin, and Jazirat ibn Umar (Cizre) were consequently ceded to Turkey.

The border was to run from the Mediterranean Sea immediately south of Payas to Meidan Ekbis (which would remain in Syria), then bend towards the south-east, running between Marsova (Mersawa) in the Sharran district of Syria and Karnaba and Kilis in Turkey, to join the Baghdad Railway at Al-Rai From there it would follow the railway track to Nusaybin, with the border being on the Syrian side of the track, leaving the track in Turkish territory.

According to Article 9 of the treaty the Tomb of Suleyman Shah (the burial place of Suleyman Shah, the grandfather of Osman I, the founder of the Ottoman Empire) in Syria "shall remain, with its appurtenances, the property of Turkey, who may appoint guardians for it and may hoist the Turkish flag there".