declared by Egypt in a decree signed by the former prime minister Ahmed Nazif. Map See also Annexation Bir Tawil, an adjoining terra nullius, claimed by neither Egypt nor the Sudan Egypt–Sudan border Egypt–Sudan relations Foreign relations of Egypt Foreign relations of Sudan Territorial dispute Wadi Halfa Salient References External links 1808 Map of Africa 1892 Map of Egypt 1912 Map of Egypt under the British Disputed territories in Africa Territorial disputes of Egypt Territorial disputes of Sudan Egypt–Sudan border Egypt–Sudan relations Red Sea Governorate