The Bakil federation is the largest tribal federation in Yemen. Imam Yahya's campaign to subject the country, and more specifically the tribes, to his control, led him to undertake massive campaigns against their influence and power; in fact, his efforts succeeded in permanently eliminating all but two of the ancient confederations (the Hashid is the other one to survive). The member tribes of the Bakil Confederation are found primarily in the far north of the country; its leaders today are the Abu Luhum clan, of the Nihm tribe.
Read more about Bakil: Ancient History, Converting To Islam, After Ali, Power Vacuum in Yemen and The Imam Hadi, Modern History, Bibliography