This article studies 1923 compulsory population exchange between Greece and Turkey through a case study of its experience in Izmir. It traces the ways the early Republican state engaged in the project of reshaping the population by eliminating the non‐Muslims who were rendered as ‘excesses’ in the spatial and discursive matrices of the nation‐state. Through the experience of the exchange in Izmir, it argues that the process of the accommodation and assimilation of the exchangees played a significant role in shaping the modalities of Turkish nationalism by creating new lines and fissures, further dividing the ‘Muslim brethren’ into ever restrictive constructions of Turkishness. It also underlines that this forced displacement is not just a significant episode in Greek and Turkish histories but that it represents a turning point in the project of nation formation in general.