For months Sudan has been building up troops in Darfur , adding thousands of men in key garrison towns , preparing for an assault on the non-Arab rebel groups that refused in May to sign an agreement to end the war .
Sudan
Darfur
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Darfur
Sudan
/location/administrative_division/country
Sudan
Darfur
/location/country/administrative_divisions
LOCATION
Sudan
LOCATION
Darfur