What people principally inhabit the Sahara desert and also live in the Gao Region?
Gao Region:  Common ethnicities in the Gao Region include the Songhai, Bozo, Tuareg, Bambara, and Kounta. Tuareg people: The Tuareg people ( ; also spelled Twareg or Touareg; endonym "Kel Tamasheq", "Kel Tagelmust") are a large Berber ethnic confederation. Tuareg people:  They principally inhabit the Sahara desert, in a vast area stretching from far southwestern Libya to southern Algeria, Niger, Mali and Burkina Faso.
The Tuareg people