a republic in northeastern Africa on the Red Sea; achieved independence from Egypt and the United Kingdom in 1956, a region of northern Africa to the south of the Sahara and Libyan deserts; extends from the Atlantic to the Red Sea, proper Country in Northeast Africa. Official name_ Republic of the Sudan, A climatic zone characterized by savannas and mosaic forests running in a belt just south of the Sahel in West and East Africa, historical Mali (when it was under French colonial rule as Soudan)