Sudan's civil war has passed the grim milestone of its third anniversary, with the conflict now entering its fourth year and showing no signs of resolution. The fighting between the Sudanese Armed Forces and the paramilitary Rapid Support Forces has driven one of the world's worst humanitarian crises, displacing millions and leaving large portions of the population facing acute food insecurity. The protracted war's continuation deepens fears among aid organisations that Sudan's civilian population faces catastrophic suffering with little prospect of immediate relief.