Turkish President Recep Erdogan made a speech full of threats to Greece. He called on Athens to learn from history and not forget the defeat in the Greco-Turkish war in 1922.
"Greece, look at history, go back in time - if you go too far, the price will be high. I want to say only one thing to Athens: Don't forget Izmir!", said the Turkish president.
The last scene of the Greco-Turkish war of 1919 - 1922 was played out in Izmir. Greek troops from Asia Minor were evacuated through the port of the city at the beginning of September 1922 after their defeat at Dumlupinar, while during the capture of the city by Turkish forces, led by Mustafa Kemal Ataturk, much of it was burned, and thousands of Greek and Armenian refugees perished. The fall of Izmir is a lasting trauma in the historical memory of today's Greece.
https://m.novinite.com/view_news.php?id=216569
The Greek campaign was launched primarily because the western Allies, particularly British Prime Minister David Lloyd George, had promised Greece territorial gains at the expense of the Ottoman Empire, recently defeated in World War I. Greek claims stemmed from the fact that Anatolia had been part of Ancient Greece and the Byzantine Empire before the Turks conquered the area in the 12th-15th centuries. The armed conflict started when the Greek forces landed in Smyrna (now İzmir), on 15 May 1919. They advanced inland and took control of the western and northwestern part of Anatolia, including the cities of Manisa, Balıkesir, Aydın, Kütahya, Bursa and Eskişehir.
The Greek front collapsed with the Turkish counter-attack in August 1922, and the war effectively ended with the recapture of Smyrna by Turkish forces and the great fire of Smyrna.
As a result, the Greek government accepted the demands of the Turkish National Movement and returned to its pre-war borders.
https://en.m.wikipedia.org/wiki/Greco-Turkish_War_(1919%E2%80%931922)
Smyrna Catastrophe
September 1922. Estimated Greek and Armenian deaths range from 10,000 to 125,000. 80,000–400,000 refugees.
The Treaty of Lausanne
The treaty officially settled the conflict between the Ottoman Empire and the Allied French Republic, British Empire, Kingdom of Italy, Empire of Japan, Kingdom of Greece, and the Kingdom of Romania.
It provided for the Greek-Turkish population exchange.
The 1923 population exchange between Greece and Turkey
It involved at least 1.6 million people (1,221,489 Greek Orthodox from Asia Minor, Eastern Thrace, the Pontic Alps and the Caucasus, and 355,000–400,000 Muslims from Greece), most of whom were forcibly made refugees and de jure denaturalized from their homelands.