Sudan's civil war has drawn extensive foreign involvement, complicating peace efforts and deepening the humanitarian crisis.

South Sudan remains the world’s newest country 13 years after ... in 2011 following a 2005 agreement to end a decades-long civil war, the ten most southern states broke away from Sudan to ...

Russia in particular has been a strong military force in favor of Assad, with Russian troops being stationed in Syria since launching an intervention during the country's civil war in 2015.