Tensions are running high. Many Tuareg nomad tribes, who roam the southern Sahara desert spanning the borders of Libya and its neighbours, backed Gaddafi late into the war. The Arab fighters of Zintan ...

The rebels, all ethnic Tuareg, descend from the fierce nomads ... to come to Libya, where he would help them fight for their rights. But soon after joining one of his training camps, they realized ...

From the Tuareg, who spend their lives roaming the Sahara Desert, to the Nenets, who migrate 800 miles every single year, these are the world's last surviving, and most fascinating, nomadic tribes.