A 29 July, 2011 report published by the Institute for Security Studies provides a good background to the problems facing South Sudan.
Written by Andrews Atta-Asamoah, Roba D. Sharamo and Philip M. Mwanzia and titled “South Sudan: Origins and Implications of Emerging (In)security Dynamics” (PDF), it begins with a historical review and then offers explanations for the current situation and implications for the future of South Sudan.
The analysis concludes that there are serious questions about the state of intra-South cohesion, the capacity of the Sudan People’s Liberation Movement (SPLM) and Army to provide security for southerners, and the SPLM’s ability to preside over and/or nurture a viable state.