The massive November 24 terrorist attack by Islamic State on a Sufi mosque in a town of little importance, Bir al-Abd, in northern Sinai, resounded across the world. Despite the presence of members of the security services, the al-Rawda mosque also serves as the local headquarters of a prominent Sufi Brotherhood founded by the local al-Jarir clan, a branch of the powerful Al-Sawarkah tribe. The number of dead, somewhat over 300, were shockingly high, yet not higher than the tolls in two earlier Islamic State massacres. In 2014, IS fighters killed 700 men of the Shu’aytat tribe in Dayr al-Zur. “Over a three-day period, vengeful fighters shelled, beheaded, crucified and shot hundreds of members of the Shaitat tribe after they dared to rise up against the extremists.” In 2016, a series of bombings in Karrada, a Shi’i district of Baghdad, took some 347 lives.