Sudan Sudan joined the League of Arab States in 1956. Nature and Structure of Government: Capital: Khartoum Type: Military; civilian government suspended and martial law imposed after 30 June 1989 coup Long Form of Name: Republic of the Sudan Independence: 1 January 1956 (from Egypt and UK; formerly Anglo-Egyptian Sudan) Administrative Regions: 9 states (wilayat, singular - wilayat or wilayah*); A'ali an Nil, Al Wusta*, Al Istiwa'iyah*, Al Khartum, Ash Shamaliyah*, Ash ...