South Sudan risks a return to war, the United Nations warned Friday, with outbreaks of interethnic violence and political infighting threatening to undo even the limited progress made in implementing its lumbering peace process.
The world's newest nation has suffered from chronic instability since independence in 2011, including a brutal five-year civil war between forces loyal to President Salva Kiir and his deputy Riek Machar that cost almost 400,000 lives.
