Here in Sudan's Nuba Mountains the war isn't nearly over. It's escalating as skirmishes between north and South Sudan become bigger battles. The war is widening and more people are dying - and one day we will ask whether we did enough to stop it.
Aidan Hartley went to the Nuba Mountains for Channel 4 Television's Unreported World. He's covered Africa and other hotspots for 24 years.
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