As the war takes a new turn, who are the fighting sides in Sudan?

The paramilitary Rapid Support Forces seized control of the entire Darfur region, after ousting the rival Sudanese army from its last stronghold there in el-Fasher. Its capture raises fears that Africa's third-largest nation may split again, nearly 15 years after the oil-rich South Sudan gained independence following years of civil war. FRANCE 24's Carys Garland looks back on the history of the conflict.