The conflict in western Sudan's Darfur region could scuttle hopes to cement a peace deal to end 21 years of fighting between the Sudanese government and southern rebels, a senior southern rebel commander told BBC Online. Abdel Aziz Adim of the Sudan People's Liberation Army said he would not join a coalition government with Khartoum given the Darfur situation. "We will not be party to a government that will crush the people of Darfur," he said. "They have a just cause and I personally will not be ready to work with such a government."