S. Sudan withdraws from oil area, easing border crisis
Global powers have urged the South to pull out to avoid war with neighbouring Sudan
Ugandan troops play jungle cat and mouse with Kony
The special operations group is at the forefront of a reinvigorated international drive to close the net on Kony and the remnants of his depleted Lord's Resistance Army (LRA) rebel group
Africa sitting on sea of groundwater reserves
Underground water reserves in some of Africa's driest parts could help protect against effects of climate change, say scientists