The Islamic State of Iraq and Syria or Islamic State of Iraq and al-Sham is a Salafi jihadist militant group that adheres to an Islamic fundamentalist, Wahhabi doctrine of Sunni Islam. You know who they are. They used to be called ISIS, (sometimes ISIL, sometimes just Islamic State), but now (for reasons Greg Taylor so brilliantly summed up here) we call them Daesh. Isis, the Egyptian Mother of Life, the Crone of Death, the Goddess of Magic, worshipped more than three thousand years before the Prophet Mohammed was born, venerated by the Romans and Ancient Greeks alike (and still worshipped by some today), has had her name taken in vain for long enough.