3 Africa 's Borderless Wars Foreign rebels have used the porous borders of Central African Republic , a potential bulwark against the chaos of its neighbors in Chad and the Darfur region of Sudan , as a staging ground to mount attacks over the border , spreading what the United Nations has called the world 's '' gravest humanitarian crisis . ''
Africa
Chad
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Africa
Sudan
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LOCATION
Africa
LOCATION
Central African Republic
LOCATION
Chad
LOCATION
Darfur
LOCATION
Sudan
ORGANIZATION
United Nations