Ba'athist Arabization campaigns in northern Iraq
Between 1968 and 2003, the ruling Arab Socialist Ba'ath Party of the Iraqi Republic perpetrated multiple campaigns of demographic engineering against the country's non-Arabs. While Arabs constitute the majority of Iraq's population as a whole, they are not the majority in all parts of northern Iraq.
Source: Wikipedia — Ba'athist Arabization campaigns in northern Iraq (CC BY-SA 4.0)