In 1919, Greece having Izmir as a core state does not make sense. Historically, it was invaded until the Great Assault of Turkish forces. Also, I never got the Treaty of Lausanne focus to actually work, as every time the Ottoman Empire signs a peace treaty forcing me into a full war against Greece. If we are going for historical accuracy, the war between Turkey and Greece should end when Turks retake Izmir, regardless of whether the Ottomans still exist or not.

Any more thoughts?