Borkou-Ennedi-Tibesti_Region
The Borkou-Ennedi-Tibesti (BET) was until 2008 one of the then 18 regions of Chad, its capital being Faya-Largeau. It comprised the former Borkou-Ennedi-Tibesti Prefecture. Most of the region was part of the Sahara desert.
In 2008, this region was split into three new regions: Borkou Region, Ennedi Region, and Tibesti Region.