From the Document: "Peace has been elusive in South Sudan, which became the world's newest country in 2011. Nearly 400,000 people are estimated to have died as a result of a civil war that began in 2013. The war has displaced over 4 million people, including over 2 million refugees who have fled to neighboring countries. It is Africa's largest refugee crisis."
CRS In Focus, IF10218
Congressional Research Service: https://crsreports.congress.gov/