- Kanem-Bornu Empire (700 - 1380 AD)
- Bagirmi Sultanate (1480/1522-1897)
- Wadai Empire (1501-1912)
- French Chad (1900-1960)
- Wadai War (1906-1912)
- Chadian Civil War (1965-1979)
- Coup d'état (1975)
- Chadian-Libyan conflict (1978-1987)
- Toyota War (1986-1987)
- Chadian Civil War (2005-2010)
(This post includes any nation or civilization that occupied at least a portion of Chad at some point. Unless specified otherwise, the dates correspond to when a nation or civilization existed, but do not necessarily correspond to occupation of Chad.)