My Lords, since the end of the Cold War, the day-to-day danger of nuclear exchange has much diminished and nuclear weapons arsenals have been greatly reduced but we are not complacent. Dangers remain, for instance, in tensions caused by regional conflicts. We are working to address those through diplomacy, international conflict prevention activity and by work to prevent the proliferation of nuclear weapons. All of those approaches are designed to contribute towards creating the circumstances in which our ultimate goal of global nuclear disarmament can be achieved.