Dr Julian Lewis: Talking of alternatives, does my hon. Friend agree that the few percentage points of the defence budget that will be spent on replacing Trident give far better value for money than the alternative of putting nuclear cruise missiles on Astute class submarines, as has been recommended by the Liberal Democrats, almost all of whom are unaccountably absent from the Chamber today?

[The Parliamentary Under-Secretary of State for Defence (Mr Philip Dunne): My hon. Friend is a stalwart defender of this country’s nuclear deterrent. I applaud him for that and for the debate that he called on this subject at the end of last year. It remains to be seen what costings are attached to the alternative plans that our coalition partners may or may not publish in due course.]