The first group is held for convenience to include the Tuareg in the Ahnet mountains, the Taitoq, and those north-west of the Ahaggar mountains. The second group is comparatively compact. The third group is the one with which this volume deals in detail, and includes the Kel Geres and other Tuareg generally of the Southland, in and on the fringes of Nigeria. The fourth group should more properly be divided, as it comprises the distinct aggregations of the Aulimmiden, the Ifoghas of the Mountain (Ifoghas n’Adghar),[18] and the Tuareg of Timbuctoo and the Niger. The country of the Ahaggaren proper is confined to the Ahaggar massif, but there are certain outlying districts to the north and north-west. The confused mass of hills east of Ahaggar towards the Fezzan was, at the beginning of the century, essentially the country of the Azger. In recent years they have tended to move eastwards towards their original homes and away from the influence of the French military posts. The majority of this group now ranges over the country between Ghat and Murzuk. They are the Tuareg who have come least into contact with Europeans. Although there is considerable affinity between them and the Ahaggaren, the Tuareg generally recognise that the Azger do not belong to, or are under the rule of, the Ahaggar chieftains despite the fact that they are all collectively known in Air as Ahaggaren. Those travellers who have known them are at one in considering them to-day an independent division. From the historical point of view the Azger are the most important of all the Tuareg, since from this group, reduced in numbers as it now is, most of the migrations of the race to the Southlands seem to have taken place. They are also probably to-day the purest of the Tuareg stock in existence.