I thank my noble friend for his important question. Whether it is aircraft carriers and planes, the number of soldiers, technology or other capabilities, you have to have the capability you need to meet the threat that you face. My noble friend is right to point that out. That is the fundamental principle that underlies the review of the noble Lord, Lord Robertson, and why he will be working closely with others. I say to all noble Lords that it is an open review and anyone is welcome to contribute to it.