The Addis Ababa Agreement's establishment of the Southern Sudan Autonomous Region gave a degree of autonomy to the south.
[3] It meant southern Sudan would no longer be divided into the three separate regions Al-Istiwāʾiyyah (Equatoria), Baḥr al-Ghazāl, and Aʿālī al-Nīl (Upper Nile).
[4] A decade of relative peace followed, though the Addis Ababa Agreement failed to dispel the tensions that had originally caused civil war.
In 1983 President Gaafar Nimeiry declared all Sudan an Islamic state under Sharia law, including the non-Islamic majority southern region.
The Southern Sudan Autonomous Region was abolished on 5 June 1983, ending the Addis Ababa Agreement.