Sudan

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Grang Demebiar, left, the son of late Sudanese politician John Garang, who is in the group supporting ousted Vice President Riek Machar, as Grang Demebiar arrives with unidentified delegates in Addis Ababa, Ethiopia, Thursday, Jan. 2, 2014, to start peace talks. African mediators met representatives of the rival sides representing President Salva Kiir and ousted Vice President Riek Machar, briefing them separately ahead of the official start of direct talks. South Sudan has been plagued by ethnic violence underscoring the challenge facing African mediators and the rival delegation sides. (AP Photo/Elais Asmare)