South Sudan could be falling into civil war. The African Union has sent mediators to avert the crisis. This is not the first time the African Union was involved in Sudan. There was an AU mission in Darfur. The current crisis was sparked by the Neur White Army. The escalation went further with the arrest Riek Machar. The basis of the arrest was that Machar was connected to the Neur White Army. The new tension has an ethnic element with Neur and Dinka. Most of the current fighting is occurring in the Upper Nile state. The African union mediators want to see the 2018 peace deal remain in place. The reason for the concern is that a South Sudanese civil war would merge with other conflicts. Chad and Ethiopia would be effected by refugees fleeing fighting. Uganda also is a major factor in regional power. President Yoweri Museveni came to Juba to express support for President Salva Kiir Mayadit. Uganda is exploiting the internal struggles to gain more influence in East Africa. The third Sudanese Civil War has reverberated with the flow of arms into South Sudan. President Salva Kiir Mayadit has been the only head of state since 2011. Power sharing was not going to work in a political system that is authoritarian. The African Union requested that Riek Machar's release, yet the government refuses to meet such as demand. More efforts for diplomatic solutions are being made.