Member of the African Union High-Level Implementation Panel (AUHIP) Nigeria's General Abdulsalami Abubakar (front L), Sudan's Defence Minister General Abdel Raheem Mohammed Hussein (front C) and South Sudan's Defence Minister General John Kong (front R) sign the security agreement of the Sudan and South Sudan negotiations on post-secession matters in front of Sudan's President Omar al-Bashir (back L), former South African President and African Union mediator Thabo Mbeki (back 2nd R) and South Sudan's President Salva Kiir (back R) in Addis Ababa on september 27, 2012. Sudan and South Sudan inked a series of deals on security and cooperation on September 27, hailed by their presidents as ending the rivals' conflict but falling short of a comprehensive solution. AFP PHOTO / Mulugeta Ayene        (Photo credit should read Mulugeta Ayene/AFP/GettyImages)