In 1919 Turkish Grand National Assembly (Kemal Attaturk) versus the Ottomans . But you had them on one side and U.S.A , Greece , Armenia , France , UK. Now back to my point why did they sided with the Ottomans and not the G.N.A (Attaturk) . Like Greece was part of Ottoman in the past why did they enter with the Ottomans and not against. ?? It's illogical to my brain .
The Ottoman government had surrendered and accepted the Allies' terms. Once Ataturk rebelled (against Allied occupation and the Ottoman government for accepting it) the only way the Ottoman goverment could survive was by fighting Ataturk, and therefore fighting on the side of the European occupiers.