Tens of thousands of refugees from Darfur and the Central African Republic languish in refugee camps in Chad, making it one of the 10 countries hosting the most refugees.
Many thousands of local people have also been forced from their homes.
Koukou is just 35 miles from the poorly defined border with Darfur.
It barely existed until an attack by Janjaweed militias on border villages in April 2007.
One-Minute World News
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