The war between the Sudanese Armed Forces and the paramilitary Rapid Support Forces has spread across Sudan. Violence is concentrated in western Darfur and the capital, Khartoum. The UN envoy who was helping to mediate the conflict was told he is no longer welcome in Sudan. Nonetheless, a new ceasefire agreement is set to start tomorrow. The World’s host Carol Hills gives a bird’s-eye view of the war and tells the story of one particular battle in Khartoum.