Andrew Natsios, the president’s special envoy for Sudan, gestures during a press briefing on Darfur and the U.S.-imposed sanctions, on Tuesday, May 29, 2007, at the State Department in Washington. (Associated Press)
Sudanese President Omar Bashir is condemned by South Sudan's chief negotiator as not a man of peace. “He is a warmonger and a racist, and someone who is calling for genocide.” (Associated Press)
Residents try to extinguish fires in the smoldering remains of a market in Rubkona near Bentiu in South Sudan after an attack by Sudanese aircraft on April 23. A massive humanitarian crisis, triggered by the conflict and heightened by an approaching rainy season, is threatening the lives of hundreds of thousands of people along the Sudan-South Sudan border. (Associated Press)
** FILE ** Sudanese armed forces ride a military vehicle in the oil-rich border town of Heglig, Sudan, on Tuesday, April 24, 2012. (AP Photo/Abd Raouf)
Sudanese state Minister of Information Sana Hamad poses April 24, 2012, for a photo with Sudanese armed forces at the oil-rich border town of Heglig, Sudan. (Associated Press)
South Sudanese President Salva Kiir reviews an honor guard with Chinese President Hu Jintao during a welcoming ceremony at the Great Hall of the People in Beijing. The Obama administration has been working closely with Beijing to try to prevent a full-fledged war between Sudan and South Sudan, where bombs dropped overnight heightened tensions. (Associated Press)