The crisis in South Sudan is set to dominate President Barack Obama’s speech today when he becomes the first US leader to address the 54-member African Union in Addis Ababa.<br /><br /> South Sudan’s 19-month civil war has left thousands of people dead and displaced more than two million.<br /><br /> Obama who is winding up a two nation Africa tour in Ethiopia, held a mini summit with leaders from Kenya, Uganda, Ethiopia and Sudan to discuss the conflict raging between President Salva Kiir’s government and rebels.<br /><br /> An August 17 deadline has been set for the waring factions to reach a peace deal . If they don’t, various options including the imposition of additional sanctions are being considered.<br /><br /> President Obama came to Africa partially to connect with the continent of his forefathers, beginning in Kenya where his father was born. But yesterday he met an ancestor of a different kind: “Lucy,” the 3.2 million-year-old partial skeleton discovered in Ethiopia.<br /><br /> Obama returns to the US after his African
