North/South Comprehensive Peace Agreement (CPA) - research further.
deal provides for a permanent ceasefire, autonomy for the south, a power-sharing government involving rebels in Khartoum and a south Sudanese referendum on independence in six years' time.
This is a very detailed timeline of some major events during the civil war in Sudan, and I think that this would be very useful for those that want to learn more about the Sundanese Civil war and its background.