Ministry of Defence

The hon. Gentleman makes a point about the impact on real defence spending of things such as currency fluctuations. We are talking about the need for stability in the defence budget and for it to be fiscally neutral, which I think was the term used by the Secretary of State, so should the Treasury not give special dispensation to the MOD so that it is pegged to a certain real level of spending, which would be an automatic stabiliser that rises and falls automatically with changing valuations or with defence inflation rates?