Oral question asked in the House of Commons, by Tessa Munt (Liberal Democrat). It was answered on Monday, 31 January 2011 on behalf of the Ministry of Defence.

Trident Replacement Submarines

Question: It would appear from the answers to freedom of information requests that the steel, the computer systems and the combat systems, among other things, for the first submarine have been ordered and will have been paid for. It also appears that the three reactors for the first three submarines will have been ordered and paid for before MPs can scrutinise the main gate business case. What will remain unspent for the first submarines? Will we be so financially committed that the whole main gate decision is made irrelevant?

Answer: Whatever amount of money is spent on the lead items, technically it is up to any Parliament at any time to determine whether any programme can or cannot go ahead. It is clear from the coalition agreement that we are committed to maintaining a continuous at-sea minimum credible nuclear deterrent that will protect this country from nuclear blackmail and ensure that we make our role apparent in reductions in total nuclear armaments.

Secondary information