South Sudan became independent last year following a two - decade civil war . Border disputes with its northern neighbor have put the region on edge . The conflict has caused a huge humanitarian crisis . The South Sudanese government is also suffering from a lack of oil revenue .
South Sudan became independent last year following a two-decade civil war . Border clashes with its northern neighbor have put the region on edge . The fighting has created a huge humanitarian crisis . The South Sudanese government is also suffering from a lack of oil revenue .