UN faces big challenge as Sudan readies for split
The south is scarred by decades of civil war, tribal conflicts and poverty
FACTBOX-Independence of South Sudan on July 9
The steps to statehood
Sudan closest to civil war since 2005 peace pact, NGOs say
International community must act quicker to enforce demilitarised zone and deploying peacekeepers along border -report
Sudan grants UN limited access to tense border area
Kadugli -- scene of fighting and looting
Food aid - how does it work?
Key facts about the global food aid system and how it works