Strategic Defence and Security Review

Does my right hon. Friend agree not only that we must seek to learn the lessons of history, after the Vanguard was not replaced quickly enough with the Astute programme order, but that if the same mistake were repeated, the dangers would be even greater given the civil nuclear programme that we hope will be carried out in parts of Cumbria and across the UK, and given the greater danger of drawing skills away from the Trident successor programme?