South Sudan is the worlds youngest country and ever since it's birth, South Sudan has experienced civil war that has torn the country up. I traveled to South Sudan for two weeks in the summer of 2014 and witnessed one of the roughest places on earth.
When the war broke out, Malakal was one of the larger cities that was nearly destroyed and almost completely evacuated. It's literally a ghost town. It once had a population of nearly 160,000 people; when I went through it, Malakal was almost completely empty.
Some citizens still reside nearby in a camp set up by the United Nations, but the majority of people either died or traveled to other regions and other countries.