Strategic Defence and Security Review

"““When it comes to our nuclear deterrent, there are some straightforward questions to answer. Should it be replaced? Do we need a submarine-based system? Does the decision need to be taken now? Our approach to all those questions is to answer yes.””" Those are not my words, but the words of my right hon. Friend the Member for Witney (Mr Cameron), now the Prime Minister, on 4 December 2006, when he gave an excellent response to the statement by the then Prime Minister, Tony Blair, on why the Trident programme should be renewed. My right hon. Friend went on to say:"““Conservative Members have always believed that Britain should have an independent nuclear deterrent””—" and that"““Those who argue that the world has changed so that no deterrent is required miss the point. Yes, the world has changed, and it continues to change rapidly, but that is the very case for keeping up our guard. Just as today's threat is so different from that predicted 20 years ago, today we cannot predict the threat that we will face in 20 years' time. Still less can we predict the threat in 40 to 50 years' time, when the next generation of submarines will still be in service.””" Finally, my right hon. Friend pointed out that we need a credible deterrent, both against rogue states and against serious, modern, well-equipped states that pose a more traditional threat to our security. He said:"““We should have a credible deterrent to both.””" He went on to say that"““the key to a credible system is that it is not vulnerable to pre-emptive attack…Do not all the experts agree that, of the three options of land, air or submarine-based systems, the submarine-based system is the least vulnerable by far?””—[Official Report, 4 December 2006; Vol. 454, c. 24.]" That was why, when the vote was held on replacing the nuclear deterrent with a successor to Trident on 14 March 2007, the Conservative Opposition voted very strongly with the Government. The motion was carried by 413 votes to 167, with the Liberal Democrats and some Labour rebels voting against. Following that, the Conservatives gave a manifesto commitment at the last election, committing our party to replacing the Trident nuclear system with a successor system that would be submarine-based. We went into the election on that basis, but did not win enough seats—sadly, it must be said—to form a Government by ourselves. Conservative MPs were summoned, got together and addressed by our party leader. We were told about the various offers made to form a coalition with the nuclear deterrent—[Laughter.] Sorry, I mean with the Liberal Democrats. Because the nuclear deterrent was such a major issue of difference between us and the Liberal Democrats, a special mention was made of it, and it was stated that the successor to Trident would be carried forward and that the Liberal Democrats would have to accept it. I particularly remember a senior colleague looking at me, catching my eye at that moment, and giving me a reassuring nod because he knew of my concern about this issue. That was my right hon. Friend, as he now is, the Chancellor of the Exchequer. I must say that when I came to the Chamber this morning, I was very agitated because it appeared that someone—a Government source—had spoken to the BBC suggesting that this commitment was in doubt. As I said in an intervention, if so, this was particularly alarming because it would be a betrayal of the commitment the Conservative party gave to the electorate and a betrayal of the commitment the Conservative party leader gave to Conservative MPs when seeking their support, which we gave, to the formation of the coalition. I cannot imagine that such a betrayal would take place. I must say that I am considerably reassured by the answers I have had from the Minister for the Armed Forces to questions put to him earlier in the debate.