23. Which African country is not a member of the African Union? Morocco is the only African country not to have joined the AU. It left the Organisation of African Unity in 1984, after the OAU granted membership to the Saharan Arab Democratic Republic set up by the independence movement in the disputed territory of Western Sahara.

23. Which African country is not a member of the African Union?

Morocco is the only African country not to have joined the AU. It left the Organisation of African Unity in 1984, after the OAU granted membership to the Saharan Arab Democratic Republic set up by the independence movement in the disputed territory of Western Sahara.