By the end of 1922 , the vast majority of native Asia Minor Greeks had already fled the Greek genocide ( 1914 – 1922 ) and Greece 's later defeat in the Greco-Turkish War ( 1919 – 1922 ) . According to some calculations , during the autumn of 1922 , around 900,000 Greeks arrived in Greece . 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
Greek genocide
Greek genocide
Refugee crisis