In early 2003, after several years of simmering violence, rebel groups in Darfur launched a full-scale rebellion against Sudanese government targets. Two groups emerged. The Sudan Liberation Army (SLA) enjoyed early successes, capturing el-Fasher airport, but then nearly succumbed to Khartoum’s brutal counter-offensive. It was further weakened by internal tensions between its two leaders, Abdel-Wahid Mohammad Nur (a Fur) and Minni Arku Minawi (a Zaghawa).