Six weeks ago, I wrote: "We should be in no doubt: we, the West, are back in Iraq." And so it has come to pass. It is difficult to see how it could have been otherwise, once the murderers of Islamic State (or Isis or Isil, take your pick) started killing American and British journalists and aid workers on video. ... We have entered a bizarre Alice in Wonderland world in which Washington, Tehran, Damascus, Riyadh and Doha all seem to be lining up on the same side. The Saudis, Qataris and Emiratis even seem to have deployed some of their own aircraft, which I suppose at least proves that they do know what they're for.