Western Thrace Western Thrace Western Thrace or West Thrace (, "[Dytikí] Thráki" / Turkish: Batı Trakya; , "Zapadna Trakiya" or Беломорска Тракия, "Belomorska Trakiya") is a geographic and historical region of Greece, between the Nestos and Evros rivers in the northeast of the country; East Thrace, which lies east of the river Evros, forms the European part of Turkey, and the area to the north, in Bulgaria, is known as Northern Thrace. Inhabited since paleolithic times, it has been under the political, cultural and linguistic influence of the Greek world since the classical era; Greeks from the Aegean islands extensively colonized the
Turks of Western Thrace province of East Macedonia and Thrace. However, the Greek language is also widely used. Article 37 through 45 of the Lausanne Treaty set forth the obligations of the Greek and Turkish governments to protect the Turkish and Greek minorities in their territories. Each country agreed to provide the following: The Lausanne Treaty defined the rights of the Muslim communities in Western Thrace, on the basis of religion, not ethnicity, as well as maintained a balance between the minority communities of both countries (Turks in Greece and Greeks in Turkey) on reciprocal obligations toward each of those minorities. The Treaty contained