South Sudan refugees in Minkamman camp by NyamilepediaMarch 29, 2018July 14, 202000 Share0 A power struggle between South Sudanese President Salva Kiir and his former vice-president Riek Machar turned violent in mid-December, when clashes erupted between their ethnic groups, the Dinka and the Nuer. EPA/JM LOPEZ Share this:TweetWhatsAppEmailPrintTelegramLike this:Like Loading...