Anglo-French Union, again?

An Anglo-French military treaty, due to be signed today, has been greeted with dismay in some quarters while indicating to others that the Anglo-American ‘special relationship’ may well be slipping away. Is this a turning point? I’m not sure. If it is, is it an unalloyed advance? Is Britain less likely to try and police the world, just behind the American behemoth, if the French are close to hand, whispering restraint in Britain’s ear? Would an Ango-French military alliance have opposed the Iraq War or would it have forced France to support it (or would the matter have split apart such a union)?