Exchange of population between Greece and Turkey

The 1923 population exchange between Greece and Turkey (Greek: Ἡ Ἀνταλλαγή, Turkish: Mübâdele) stemmed from the "Convention Concerning the Exchange of Greek and Turkish Populations" signed at Lausanne, Switzerland, on 30 January 1923, by the governments of Greece and Turkey. It involved at least 1.6 million people (1,221,489 Greeks from Asia Minor, Eastern Thrace, the Pontic Alps and the Caucasus, and 355,000 Turks in Greece), most of whom were forcibly made refugees and de jure denaturalized from their homelands.

The population exchange was envisioned by Turkey as a way to formalize, and make permanent, the exodus of Greeks from Turkey, while initiating a new exodus of a smaller number of Muslims from Greece to supply settlers for occupying the newly depopulated regions of Turkey, while Greece saw it as a way to supply its masses of new propertyless Greek refugees from Turkey with lands to settle from the exchanged Muslims of Greece.

This major compulsory population exchange, or agreed mutual expulsion, was based not on language or ethnicity, but upon religious identity, and involved nearly all the Orthodox Christian citizens of Turkey, including its native Turkish-speaking Orthodox citizens, and most of the Muslim citizens of Greece, including its native Greek-speaking Muslim citizens.

By the end of 1922, the vast majority of native Asia Minor Greeks had fled the recent Greek genocide (1914–1922) and Greece's later defeat in the Greco-Turkish War (1919–1922).

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