The group controls much of the Nuba mountains in Southern Kordofan and launches guerrilla raids in Blue Nile state.

ECONOMIST: Sudan and South Sudan

Jamam is one of three Upper Nile camps sheltering at least 113, 000 refugees who have crossed the frequently unmarked border to escape a counter-insurgency campaign in neighbouring Blue Nile state conducted by heavily armed Sudanese government troops.

ECONOMIST: A refugee crisis is miserably taking shape