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File picture of a member of SLA standing guard as people stand in line to welcome UNAMID delegation arriving to open a new clinic in Forog, north Darfur

A member of the Abdul Wahid faction of the Sudan Liberation Army (SLA) rebel movement stands guard as people stand in line behind him for the arrival of an African Union-United Nations Mission in Darfur (UNAMID) delegation to open a new clinic in Forog, north Darfur in this May 30, 2012 file picture. To match Special Report SUDAN-DARFUR/GOLD REUTERS/Albert Gonzalez Farran/UNAMID/Handout via Reuters (SUDAN - Tags: MILITARY CIVIL UNREST SOCIETY BUSINESS COMMODITIES HEALTH) ATTENTION EDITORS � THIS IMAGE WAS PROVIDED BY A THIRD PARTY. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS

UNAMID: A joint mission between the African Union and the United Nations

October 8, 2013

UNAMID is a joint mission between the African Union and the United Nations and the world's second largest international peacekeeping force. UNAMID has an annual budget of $1.35 billion and almost 20,000 troops mainly from Africa, Asia and the Middle East. But it has struggled to protect civilians since it set out in 2008. Attacks, often by Arab "Janjaweed" militiamen, continue according to UNAMID and aid groups. The conflict, which started as a row between African pastoralists and Arab nomads over land, has killed more than 200,000 people and displaced two million. (Reuters)