Sudan army nears biggest victory of civil war with assault on capital - Africa's leaders must address weaponisation of rape in Sudan's conflict - Sudan army makes huge gains as it seeks to recapture war-torn capital - Sudan's civil war sets ablaze country's largest oil refinery - Sudan's army lauds 'turning point' in civil war after rapid gains - David Lammy 'horrified' after meeting Sudan war victims face-to-face - Fighting in Sudan's civil war sets ablaze the country's largest oil refinery, satellite photos show - How other countries are trying to gain from Sudan's descent into war - Sudan war becomes more deadly as ethnically motivated attacks rise