Darfur rebel faction representative Shar

Darfur rebel faction representative Sharif Harir Sharif Harir of the Sudan Liberation Movement-Unity faction is pictured following the official opening of an Africa Union-United Nations sponsored negotiations 03 August 2007 at Ngurdoto hotel, in Arusha, Tanzania. The founding father of Darfur's rebellion on Saturday justified his boycott of key Tanzania talks aimed at unifying rebel ranks and paving the way for peace negotiations with Khartoum. Mediators are expected to issue invitations for final settlement talks with Khartoum by the end of the month. AFP PHOTO/TONY KARUMBA (Photo credit should read TONY KARUMBA/AFP via Getty Images)