Men like Mr. Siyad became the backbone of the new Sufi militia, which got a crate of AK-47s from one set of clan elders or a sputtering armored truck from another. In December, the Sufis, whose organization is called Ahlu Sunnah Wal Jama, which roughly translates as the followers of the Prophet Muhammad, drove the Shabab out of Dusa Marreb. Since then, the Sufis have defended their territory several times against Shabab incursions.