According to the United Nations, about 60,000 people have fled South Sudan since fighting began last month. In all, almost 900,000 have left the country since civil war broke out in December 2013. Recent clashes have repeatedly threatened a tentative peace deal reached a year ago. Cholera is a growing threat for those who remain in the country. Food distribution for the tens of thousands of people stranded in UN-run displacement camps is also increasingly a challenge, and sexual violence is on the rise.