---

Nuclear Deterrent

My Lords, the Minister will recognise that the Statement he has repeated today is a major one, not least on the cost issue. In the more dangerous world in which many of us feel we now exist, it must be right to ensure that we maintain our deterrent. However, it is noticeable that the £25 billion as the outturn cost of a submarine takes no account of any additional costs that may come from any upgrading of the missile in the D5 Trident system, which is being deferred until the 2040s, or of any work done on the warhead, which is being deferred until the 2030s. There is also reference to the infrastructure. I certainly hope that any design work will ensure that the extremely expensive infrastructure work in which we got involved at Faslane will as far as possible remain usable by any new submarine. I have reservations as regards one area. I recognise the awesome power that is represented by the warheads that we are intending to maintain. I also recognise the different world in which we are now living, compared with the Cold War period with its detailed targeting plans and requirements assessed against the Soviet Union and the Warsaw Pact. Therefore, in this different world, I do not believe that there is not room for improvement and a further reduction in the number of warheads that we are seeking to maintain in our national stock. I am pleased to read in the Statement that, echoing the call of President Obama, the long-term goal remains a world free of nuclear weapons—a world that we would like to see. Obviously, it is not a realistic possibility in the short term, but I believe that we could give even more of a lead to non-nuclear powers by showing our determination to maintain the absolute minimum number of warheads needed for our national defence.