The change of name for Isis’ online magazine was a declaration of a change in strategy. It had been called Dabiq after a town in Syria where Islam is meant to triumph over the infidels in a final battle. But now in retreat, losing territory, the jihadists no longer see Armageddon as imminent. They declare, instead, that the jihad will be taken abroad to the enemy, striking at the heart of Western political and spiritual power, symbolically Rome, Rumiyah, as the new publication is titled.
Isis has, of course, carried out attacks on Western targets before. But it has been repeatedly asserting the threat lately and instructing its adherents in Europe and America to strike the enemy at home using any means at hand. Its leaders have openly called for attacks to be carried out this Christmas: so the murders in Berlin, with the use of a truck, should not have come as a surprise.