Integrated Review: Defence Command Paper

I am anxious to allow the Secretary of State a chance to expand on that. What exactly is the new threat, or the change to the strategic environment, that the Government consider requires a stockpile of 260 warheads, rather than 180, to offer that minimum credible deterrent that was presumably offered before? Furthermore, how can that 45% increase in the number of warheads be reconciled in any way with a sincere, meaningful commitment to arms control, disarmament and this country’s obligations to nuclear non-proliferation?