Some of the tribes involved Cause_to_be_included in these clashes Hostile_encounter have been the Messiria , Maalia , Rizeigat and Bani Hussein Arabic tribes inhabiting Darfur and West Kordofan , and the Dinka , Nuer and Murle African ethnic groups inhabiting South Sudan .

Rivalry among Dinka factions led Causation by the President and Paul Malong Awan have also led to Causation fighting Hostile_encounter .

Kiir 's Dinka ethnic group has been accused Judgment_communication of attacking Attack other ethnic groups and Machar 's Nuer ethnic group has been accused Judgment_communication of attacking Attack the Dinka .

Kiir 's Dinka ethnic group has been accused Judgment_communication of attacking Attack other ethnic groups and Machar 's Nuer ethnic group has been accused Judgment_communication of attacking Attack the Dinka .