After all, at what point does Britain's helpfulness cease to be helpful? There are no hard and fast rules, but when Baroness Amos is chasing Dominique de Villepin around West Africa because Guinea's presidential witchdoctor is advising against war it is hard not to feel that, even by diplomatic standards, the whole thing has become unmoored from reality.

That is Rumsfeld's function - to take the polite fictions and drag them back to the real world. During the Afghan campaign, CNN's Larry King asked him, "Is it very important that the coalition hold?" The correct answer - the Powell-Blair-Gore-Annan answer - is, of course, "Yes". But Rummy decided to give the truthful answer: "No". He went on to explain why: "The worst thing you can do is allow a coalition to determine what your mission is." Such a man cannot be happy at the sight of the Guinean tail wagging the French rectum of the British hindquarters of the American dog.