The Iwellemmedan (Iwəlləmədǎn), also spelled Iullemmeden, Aulliminden, Ouilliminden, Lullemmeden, and Iwellemmeden, are one of the seven major Tuareg tribal or clan confederations (called "Drum groups"). Their communities are historically nomadic and intermixed with other ethnic groups. The Iwellemmeden inhabit a wide area ranging from east and north central Mali, through the Azawagh valley, into northwestern Niger and south into northern Nigeria. While once a single confederation of dozens of Tuareg clans, subject peoples, and allied groups, since the 18th century they have been divided into Kel Ataram (west) and Kel Dinnik (east) confederations. Following colonial rule and independence, the Iwellemmedan homelands cross the Mali/Niger border, and their traditional seasonal migration route