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Nuclear Deterrent

My Lords, in answer to the noble Baroness’s first question, I suggest that she has a word with her honourable friend the Member for North Devon, who will be keeping oversight on this. We will do all that we can to help him with this study. I am not sure who he and the Cabinet Office will call in to give advice. We feel that submarines are the most cost-effective way of delivering a credible deterrent. Their invulnerability to detection makes it impossible for a potential aggressor to launch a pre-emptive strike. Trying to achieve this level of capability with other platforms is either not possible or would require an enormous number of platforms. Obviously if the review comes up with an alternative, it must be considered. The matter has been looked at over and over again and I am confident that there is no improvement on the submarine system.