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

Africa is one of the biggest continent in the world and there are about 54 countries in the African continent alone! (According to the statistics by United Nation).

However big the African is there is a country that does not join the African Union. Guess which country?

Morocco.

Morocco is the only African country not to have joined the AU. It left the Organization 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.