Select Committee on Defence Ninth Report


Annex 1: Conclusions of the Committee's earlier Reports on the Future of the UK's Strategic Nuclear Deterrent


Summary to the Eighth Report of Session 2005-06: The Future of the UK's Strategic Nuclear Deterrent: the Strategic Context

Decisions on the future of the UK's strategic nuclear deterrent are likely to be required during the course of the current Parliament. The Government has promised a free and open debate on the issue before any decisions are taken. To date, it has offered no explanation of the nature of the decisions that are required. Nor has it sought to clarify the timetable within which those decisions would need to be taken and implemented. This report seeks to encourage and inform the public debate by examining the strategic context and timetable for decision-making.

Decisions on the future of the nuclear deterrent will be taken, for the first time, outside the international political and military context of the Cold War. The ending of that conflict transformed our security environment and changed our security needs.

The UK will need to examine whether nuclear deterrence remains relevant in the current strategic environment. We must take into account the nature of the threats currently facing our country and examine how those threats could evolve over the lifetime of any potential Trident successor. And we must consider whether, and in what ways, retention of a strategic nuclear deterrent capability might assist the UK in addressing those threats.

Before any decisions on the future of that deterrent are made, it will be important to address the extent to which the possession of nuclear weapons enhances the UK's international influence and status and whether such a reason adds significantly to the justification for retention of a strategic nuclear capability.

It will also be essential to decide what level of dependence upon the United States the UK is willing to accept in any possible Trident successor. We must consider the potential policy implications of any technical dependencies upon the US and the differing concepts of independence adopted by the UK and France.

We welcome the Government's promise of a full and open debate in Parliament, and in the country at large, on the future of the UK's strategic nuclear deterrent. But the Ministry of Defence has refused to participate in our inquiry. We are surprised and disappointed by this refusal.

A genuine and meaningful debate is only possible with the active participation of the Ministry of Defence (MoD). The public should know what decisions will be required, when they must be taken and implemented, and what factors are driving consideration of the issue now. We call upon the MoD to engage fully in our forthcoming inquiries into the future of the UK's strategic nuclear deterrent. We hope the MoD will make a substantive response to this report and that it will address openly the issues we have raised.

Conclusions and recommendations to the Eighth Report of Session 2005-06: The Future of the UK's Strategic Nuclear Deterrent: the Strategic Context

1.  We welcome the Government's promise of a full and open debate in Parliament, and in the country at large, on the future of the UK's strategic nuclear deterrent. We are surprised and disappointed that the Ministry of Defence has refused to participate in our inquiry. We believe that a genuine and meaningful debate is only possible with the active participation of the MoD. We call upon the MoD to engage fully in our forthcoming inquiries into the future of the UK's strategic nuclear deterrent. We hope the MoD will make a substantive response to this report and that it will address openly the issues we have raised. (Paragraph 12)

2.  The UK's strategic nuclear arsenal is small in comparison with the other established nuclear powers. (Paragraph 45)

3.  In considering the future of the strategic nuclear deterrent, the UK will need to examine whether the concept of nuclear deterrence remains useful in the current strategic environment and in the context of the existing and emerging threats to the security of the country. We will have to consider whether those states and non-state actors posing such threats can, in reality, be deterred from instigating acts of aggression by either existing or new approaches to nuclear deterrence. We will also have to consider how the UK's nuclear capability should be adjusted to meet new strategic realities. Trident was developed during the final decade of the Cold War, and was designed to counter the threat posed by the size and technical capabilities of the Soviet strategic nuclear arsenal: we need to consider whether the form of the UK's current nuclear deterrent is best suited to today's and tomorrow's strategic challenges. (Paragraph 55)

4.  We believe that it is essential that, before making any decisions on the future of the strategic nuclear deterrent, the MoD should explain its understanding of the purpose and continuing relevance of nuclear deterrence now and over the lifetime of any potential Trident successor system. (Paragraph 56)

5.  Before any decisions on the future of the deterrent are made, it will be important to consider whether the possession of nuclear weapons enhances the UK's international influence and status and whether this contributes to the justification for retention of a strategic nuclear capability. (Paragraph 57)

6.  It is clear that there is a difference of views and no clear consensus that international influence is, of itself, a reason to retain the strategic nuclear deterrent. We recommend that the MoD make clear whether the Government believes the possession of a nuclear deterrent is an important contributor to the UK's international influence. (Paragraph 65)

7.  The public debate over the future of the UK's strategic nuclear deterrent should address:

  • the independence of the UK's current system; and
  • the operational and diplomatic impact of any potential dependency on the United States of any future UK nuclear deterrent. (Paragraph 66)

8.  It is important to distinguish between two different types of independence: independence of acquisition and independence of operation. We heard that independence of acquisition is what the French have opted for at a significantly higher cost to the defence budget. Independence of operation is an alternative concept of independence and it is this which the UK has opted for at a lower price. (Paragraph 80)

9.  We call upon the MoD to clarify the technical dependencies of the UK's Trident system upon the United States and to respond to the argument that the UK's nuclear deterrent is not truly independent. In weighing the importance of maintaining independence, attention needs to be paid to the differing concepts of independence adopted by the UK and France. (Paragraph 84)

10.  The public debate about the future of the UK's strategic nuclear deterrent must take into account:

  • the nature of the threats facing the UK;
  • how those threats could evolve over the lifetime of any potential Trident successor system; and
  • in what ways retention of a strategic nuclear deterrent might assist the UK in addressing those threats. (Paragraph 85)

11.  The most pressing threat currently facing the UK is that of international terrorism. Witnesses to our inquiry overwhelmingly argued that the strategic nuclear deterrent could serve no useful or practical purpose in countering this kind of threat. (Paragraph 88)

12.  Witnesses to our inquiry did not believe that the UK currently faced a direct or impending military threat from any of the established nuclear weapons states, including Russia, China, India, Pakistan, Israel, North Korea, or, of course, from France or the United States. (Paragraph 95)

13.  There are difficulties inherent in anticipating future threats to the security of the UK. It is not possible to predict accurately the nature of the future strategic international environment and to identify with any certainty the threats the UK is likely to face. (Paragraph 96)

14.  We call upon the MoD to consider publicly the threats the UK faces today and how those threats may evolve in the future. Such a threat assessment will shape any decision on the future of the UK's strategic nuclear deterrent. We accept that future threats are unknowable, but, clearly, a world in which nuclear proliferation had taken hold would create deep uncertainties in international relations. For this reason, the UK may wish to retain a strategic nuclear capability as a guard against the unknown. If the MoD believes in the value of the nuclear deterrent as an insurance policy, rather than in response to any specific threat, we believe it is important to say clearly that is the reason for needing the deterrent. (Paragraph 103)

15.  The Government has stated that decisions on the future of the UK's strategic nuclear deterrent will be required during the course of the current Parliament. To date, it has offered no explanation of the nature of those decisions. If there is to be a meaningful debate on the future of the UK's strategic nuclear deterrent, the public should know what decisions will be required, when they must be taken and implemented, and what factors are driving consideration of the issue now. (Paragraph 104)

16.  A fundamental political decision needs to be made on whether or not the UK should retain a strategic nuclear deterrent. There is no clear point at which this decision has to be made and there is a risk that - by taking a series of decisions to keep options open - we could find that we have in practice taken the decision to keep the deterrent. Conversely, if we do not keep those options open, we could find we are left without a deterrent. In our view, the UK should make a clear decision on whether to retain the strategic nuclear deterrent. It is important that a decision of this magnitude is not taken by default. It should be made only after a full public debate. It must not be made by the Government in secret. (Paragraph 106)

17.  A service life extension programme would allow the UK to postpone decisions on whether to replace Trident until around 2010, on the basis that a service life extension programme would add an additional five years to the existing system and that procurement of a Trident replacement would take approximately 14 years. By this time, it is possible that the strategic environment might be clearer. But it is likely to be an expensive process. Such an expensive option should not be used only as a means of deferring a decision on the future of the UK's strategic nuclear deterrent. (Paragraph 110)

18.  It is important that the Government continue to invest in the UK infrastructure and skills base until a decision on whether to retain or abolish the nuclear deterrent is made. Unless this investment is forthcoming, the Government is likely to find that its options will be constrained and that certain choices for the future of the UK's nuclear deterrent will no longer be available. (Paragraph 115)

19.  Given the new investment at Aldermaston, and the widespread expectation that a new warhead will not be required until well into the 2020s, the timelines for manufacturing a replacement warhead is not a key driver of the current debate. (Paragraph 121)

20.  Since the Trident II D5 missile will be in service in the United States until 2042, this component of the system is not a key driver of the current debate. (Paragraph 124)

21.  The platform is generally regarded as the crucial factor driving the current debate on the future of the UK's strategic nuclear deterrent. (Paragraph 126)

22.  If the MoD believes that the UK should retain the Continuous-at-Sea Deterrent cycle, it must either extend the life of the Vanguard-class submarine or procure a new platform to be in service by 2020. In the light of the reduced threat we currently face, an alternative possibility would be to retain a deterrent, but not continuously at sea. (Paragraph 130)

23.  We believe that the maintenance of onshore infrastructure and the domestic UK skills base is an issue of paramount importance in considering the future of the UK's nuclear deterrent. We have decided that this will be the focus of the next in our series of inquiries into the future of the strategic nuclear deterrent. In that inquiry we will also address the linkage between the Government's Defence Industrial Strategy and the decision on retention, replacement, or abolition of the UK's Trident system. (Paragraph 138)

Summary to the Fourth Report of Session 2006-07: The Future of the UK's Strategic Nuclear Deterrent: the Manufacturing and Skills Base

In its White Paper on the future of the UK's nuclear deterrent, the Government recommends the retention and renewal of the submarine-based Trident weapons system. This will require the procurement of a new generation of nuclear-powered Trident submarines to replace the existing, but ageing, fleet of Vanguard-class SSBNs.

This report does not assess the White Paper. That will be the focus of our next inquiry. In this report, we highlight the manufacturing and skills base issues which will need to be addressed if a decision is made to renew the submarine-based deterrent. The Government should respond to this report before the debate on the White Paper in March.

Building and maintaining a new generation of nuclear submarines will require a uniquely skilled and specialised workforce, and a dedicated manufacturing and support infrastructure. These already exist within the UK. But maintaining them is a key challenge. Once lost, the skills base may prove impossible or prohibitively expensive to recreate. Continuity of work on new boats is needed in order to sustain the UK's capability to design, manufacture and maintain nuclear-powered submarines.

Even if the Government's proposal to procure a replacement for the Vanguard-class submarine is rejected, the UK will need to maintain infrastructure and a skilled workforce to support the Royal Navy's conventionally-armed nuclear submarines and to carry out the decommissioning of nuclear submarines and nuclear warheads.

Affordability must be a fundamental consideration in any new submarine programme. If the UK goes ahead with procuring a successor to the Vanguard-class submarine, industry must collaborate more effectively to drive down costs. This will be important at all levels in the supply chain.

In turn, the Ministry of Defence must provide industry with clarity and consistency about operational requirements and specifications. It is vital that lessons are drawn from the problems experienced with the Astute-class programme.

Developing a Vanguard successor would be a huge undertaking. The Ministry of Defence will need the capacity to manage such a programme effectively. Any shortfalls in its preparedness must be addressed as a matter of priority.

Sustaining the skills base at the Atomic Weapons Establishment will also be important if the UK decides to retain its nuclear deterrent. The current investment in skills and infrastructure is understandable and justifiable. But the level of that investment, in advance of decisions in principle on the future of the deterrent, is a source of concern and the Government should clarify to what extent this is a result of the requirements of the regulator. Large-scale investment should follow, and not precede, policy decisions of such paramount importance to the nation.

Conclusions and recommendations to the Fourth Report of Session 2006-07: The Future of the UK's Strategic Nuclear Deterrent: the Manufacturing and Skills Base

1.  This report does not seek to assess the findings and conclusions of the Government's White Paper. That will be the focus of our next inquiry. (Paragraph 6)

2.  Any decisions on the future of the UK's deterrent should be taken on the strategic defence needs of the country. Our intention in making this report is to ensure that the House of Commons, and the public, are aware of the manufacturing and skills base issues which will need to be addressed if a decision is made to renew the submarine-based deterrent. We recommend that the Government respond to this report in good time for publication before the debate in the House of Commons on the White Paper in March 2007. (Paragraph 7)

3.  The Ministry of Defence believes that the UK should retain onshore a sovereign capability in the design, construction, operation, maintenance and decommissioning of nuclear-powered submarines. It is important that the public understand clearly the reasons for this. We call upon the MoD to provide, in its response to this report, a fuller explanation of the need for this sovereign capability. (Paragraph 31)

4.  Witnesses to our inquiry maintain that the UK's current manufacturing and skills base is already at the minimum level necessary to sustain a viable onshore submarine industry. (Paragraph 39)

5.  Witnesses to our inquiry agreed that the complexity and uniqueness of a nuclear submarine, and of the environment in which it operated, called for special skills, facilities and oversight not supported by any other shipbuilding programme. (Paragraph 42)

6.  We share our witnesses' concern about the shortage of science and engineering graduates, project managers and skilled and experienced technical staff, but this raises questions which go far beyond the scope of this report. (Paragraph 45)

7.  The UK submarine industry draws on a uniquely skilled and specialist workforce. Retaining that skills base will be essential if the UK decides it wants to continue to design, build and maintain nuclear-powered submarines. The skills base is now at a critical level. Any further erosion of the workforce may have significant implications for the future of the submarine programme. Sustaining skills in this sector is only possible with regular and continuous submarine work. (Paragraph 46)

8.  Even if the decision is taken not to procure a Vanguard successor, a specialist skills base will have to be retained in order to build SSNs and maintain and finally decommission the UK's existing fleet of nuclear-powered submarines. Some indication of the order of costs would be helpful in considering arguments about affordability and we ask that the MoD provide some information about this in their response to this report. (Paragraph 47)

9.  The submarine construction supply chain is fragile and is particularly susceptible to gaps in the programme. Extended gaps are likely to result in an erosion of the UK's submarine manufacturing and skills base. There is also a risk that single source suppliers will abandon the supply chain in pursuit of more regular and assured work. If the UK intends to build a successor to the Vanguard-class, or maintain an SSN capability beyond the current Astute order book, the supply chain will have to be sustained. To achieve this, the MoD must give clear direction and certainty about the future submarine programme in order to encourage industry to invest. We call upon the MoD to provide, in its response to this report, an assessment of whether, how and at what cost the submarine supply chain could be maintained for the construction of future SSNs in the absence of a positive decision on a Vanguard successor. (Paragraph 54)

10.  Without a new SSBN it is possible that there would be insufficient demand for nuclear submarines to sustain the industry. It is important to recognise that there is an interrelationship between SSN and SSBN construction. (Paragraph 61)

11.  It is clear that the gap between the Vanguard and Astute submarine programmes had a serious and debilitating impact on the UK's submarine industry and put at risk the future of the UK's submarine fleet. If the Government wants the UK to continue to design and build nuclear-powered submarines, it will be essential to maintain a regular rhythm of submarine construction. Reducing the frequency of construction below 22 months would be risky. Without a regular build "drumbeat", the UK skills base will erode and it may prove impossible or prohibitively expensive to recreate. (Paragraph 64)

12.  It is important that the MoD and industry agree promptly on a price for future Astute-class orders. Clarity and certainty about the future submarine programme is necessary if industry is to continue to invest in the manufacturing skills base. The MoD must also demonstrate that it has learned the lessons from the Astute programme, and implemented a much tighter contractual relationship with BAE Systems, before it commits expenditure to a new SSBN build programme. (Paragraph 65)

13.  The Government will need to consider carefully whether the potential long-term benefits of designing a completely new submarine, in which through-life affordability is built in from the start, could outweigh the cost-benefits of maximising commonality of design with existing submarines. And it will need to judge whether efforts to maximise commonality with existing submarines would be enough to sustain the specialist submarine design base in the UK. (Paragraph 67)

14.  Using a well-tried reactor in the new submarines would minimise design-related risk, but in the longer term there might be benefit in both safety and design costs in investing in a new generation of reactor technology. (Paragraph 68)

15.  We recommend that the MoD make clear in its response to this report the timetable for the procurement of the new submarines it proposes. This should indicate by when it will need to decide whether to opt for radical redesign or commonality of design for the submarine platform and for the nuclear reactor, and when it will need to decide between a three- or four-boat package. (Paragraph 69)

16.  A decision to abandon the construction of nuclear submarines would have a profound impact upon local communities, particularly at Barrow. Nevertheless, we believe that employment factors should not be decisive in the debate on the future of the deterrent. (Paragraph 75)

17.  If there were no successor to the Vanguard-class submarine, there would be an ongoing need to retain onshore a capability to support and, ultimately, to decommission the current SSBN and SSN fleet. We call upon the MoD to state in its response to this report how much it would cost to sustain that capability. (Paragraph 76)

18.  It is essential that the Naval Base Review take into account the implications for the future of the submarine industry. (Paragraph 97)

19.  Affordability must be a fundamental consideration in any new submarine programme. The Government is right to emphasise that orders for a Vanguard successor will be contingent on industry driving down and reducing costs and ensuring value for money throughout the submarine programme. Industry must deliver on this requirement. (Paragraph 98)

20.  We are concerned that insufficient attention has been given to the costs of through-life support. While we understand that DML is not a supplier to the Astute programme, it seems odd and regrettable that the company responsible for through-life support on the UK's nuclear-powered submarines has had so little input into the design of the class. If the affordability of the submarine programme is to improve, it is essential that through-life costs are taken into consideration at the initial design phase. Far greater emphasis must be placed on this consideration before the design of any Vanguard successor submarine begins. (Paragraph 99)

21.  If the UK goes ahead with procuring a successor to the Vanguard-class submarine, it is essential that industry collaborates far more extensively than it has done to date to drive down and control costs in the manner envisaged by the Defence Industrial Strategy. Promoting greater industrial collaboration should be a key priority for the MoD. In turn, the MoD must provide industry with clarity and consistency about operational requirements and specifications. It is vital that lessons are drawn from the problems experienced with the Astute-class programme. (Paragraph 105)

22.  Developing a Vanguard successor would be a huge undertaking. It is essential the MoD has the capacity to manage such a programme effectively. Any shortfall in preparedness must be addressed as a matter of priority. The MoD's shortage of systems engineers and project managers—skills essential at the start of a programme of this kind—is a cause of serious concern. If the decision is made to renew the deterrent, it is essential the MoD commit sufficient resources to the programme from the beginning. It will be desirable to bring in skills from industry. We recommend that the MoD state, in its response to this report, how it intends to address its skills shortages. (Paragraph 115)

23.  We recommend that in advance of any debate in the House of Commons on the future of the deterrent, the MoD clarifies what additional investment the Government intends to make at the AWE as a result of the recommendations contained in the White Paper. (Paragraph 130)

24.  The MoD and the AWE must apply the lessons from the A91 episode in managing the new infrastructure investment at Aldermaston. (Paragraph 131)

25.  Many observers have seen the investment programme at Aldermaston as a sign that the Government had already decided in principle to retain and renew the UK's nuclear deterrent. We accept Ministers' assurances that this was not the case. We accept too that investment in buildings and infrastructure at AWE was becoming time-critical, which might suggest that the decision on the future of the deterrent should have been taken in the last Parliament. But we are less convinced that investment in the new Orion Laser, the supercomputer and hydrodynamic facilities could not have waited for a decision in principle on the future of the UK's nuclear deterrent. If the investment was made to respond to requirements of regulators, the Government should state this in its response to this report. Large-scale investment should follow, and not precede, policy decisions of such paramount importance to the nation. (Paragraph 146)

26.  The widespread suspicion about the work of the AWE and the Government's investment there is partly a consequence of the secrecy which surrounds its work. We fully accept the need to maintain secrecy about some aspects of its work, but there is a case for greater openness, not least to ensure that the public is aware of the positive contribution the AWE makes to the verification of the Comprehensive Test Ban Treaty. (Paragraph 147)


 
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