SOUTH Sudan is facing one of the world's most severe humanitarian emergencies, with over 1.3 million Sudanese war refugees pouring across its borders and nearly 10 million of its own citizens requiring aid, the UN's migration agency has warned - even as renewed political violence threatens to collapse what little relief infrastructure remains. The International Organisation for Migration reported that displacement within South Sudan has accelerated sharply in recent weeks, with more than 250,000 people uprooted in just the past two months. The figures place South Sudan among the most displacement-affected countries globally, yet the crisis has drawn little international…