Excerpt - page 23: "... well as Gabon and Zaire to the south, and North Africa. Libya and Nigeria, two countries that have raised the concerns of France, share their borders with Chad. ..."
Excerpt - page 247: "... of the earli- est human ancestors have been found in Chad and eastern Africa. Ethiopian paleoanthropologist Yohannes Haile-Selassie reported in Florence that, ..."