The Afar, most of whom occupy one of the most inhospitable desert or semi-desert areas in the world, have long been regarded as a fierce and warlike people. They are certainly proud and individualistic, and somehow manage to eke a living out of the challenging wilderness in which many of them live. The majority of the Afar are semi-nomadic pastoralists, but a minority have settled, notably those in the Aussa oasis. Almost all are Muslims, and are organized into confederacies, tribes, and clans. The nomads live in small, isolated groups with the camel as their beast of burden, and keep sheep, goats, and cattle.