Actually, they'll leave Britain alone for a while, for a couple of reasons. First, the Labour Party isn't up for election for a while. Indeed, the Brits had an election last year.
Second, unlike Spain, Australia, and the US, there is no major party in Britain opposed wholesale to the War on Terror. Indeed, the Tories (the major opposition) are even more hawkish than the Labour Party.
Personally, I see them targeting us next, unless there's quick elections in Italy or Poland (Australia also had elections recently, IIRC).