Safer Britain, Safer WorldThe decision not to replace Trident
The decision on whether or not to replace Britain’s nuclear weapons system must be taken on the basis of what will most contribute to the security of the British people. A decision not to replace Trident will best meet that requirement. It will strengthen the international disarmament and non-proliferation regime by ensuring Britain’s compliance with its international treaty obligations; it will deter nuclear proliferation and de-escalate current tensions leading towards a new nuclear arms race; and it will release signifi cant fi nancial resources to meet a range of public spending priorities. A decision not to replace Trident must be taken in tandem with government initiatives towards its stated goal of multilateral disarmament: backing a World Summit on nuclear disarmament and non-proliferation, and working towards a Nuclear Weapons Convention banning all such weapons.
Currently, Britain’s nuclear weapons system comprises almost two
hundred nuclear warheads, launched from US Trident missiles,
carried on four submarines. Each warhead has around eight times the
explosive power of the Hiroshima bomb which killed over 200,000
1. Today’s security challenge It is widely agreed that the main security threat facing Britain today
is terrorism carried out by non-state actors. The Defence Committee
Inquiry in 2006, looking into the strategic context of Trident
Replacement, concluded that: ‘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’ 1. In October 2005, Prime Minister Tony Blair had also
come to this conclusion, ‘I do not think that anyone pretends that the
independent nuclear deterrent is a defence against terrorism’ 2.
Nuclear weapons cannot have a role to play in responding to such a
threat. Principally, we already know from the terrible attacks in New
York and London that possession of nuclear weapons by a nuclear
weapon state does not dissuade terrorists. In addition, terrorists could
never present any accurately located target for such a weapon of
2. No current nuclear threat The Trident system was developed by the US specifi cally for the Cold
War context: to be able to win an actual nuclear war against a hostile,
massively armed state. Despite the Cold War coming to an end,
with the Soviet Union dissolving in 1991, the UK went ahead with
acquiring Trident which was launched in the mid 1990s with the last
According to the government’s Strategic Defence Review in 1998,
‘there is today no military threat to the United Kingdom or Western
Europe. Nor do we foresee the re-emergence of such a threat’ 3. This
was reiterated by the recent Defence Committee Inquiry, ‘Witnesses
to our inquiry did not believe that the UK currently faces a direct or
impending military threat from any of the established nuclear weapon
3. Protection from future threats In September 2005, the then Defence Secretary John Reid suggested
that a replacement for Trident would be necessary in case we face
a nuclear enemy in the future. 5 Another former Defence Secretary,
Malcolm Rifkind has recently described our nuclear weapons as an
insurance policy for the future. But rather than providing insurance
against an unspecifi ed future threat, replacing Trident will increase
the danger of nuclear proliferation and will contribute to a new
nuclear arms race. If the UK envisages at least another 50 years of
British security being based on threatening other populations with
mass destruction then we encourage other states to do the same and
thus paradoxically we increase our security risk rather than decrease
it. This position was recently expressed by Kofi Annan, who linked
the failure to disarm with the danger of nuclear proliferation, at the
60th anniversary of the UN: ‘the more that those states that already
have [nuclear weapons] increase their arsenals, or insist that such
weapons are essential to their national security, the more other states
feel that they too must have them for their security’ 6. The failure of
the nuclear weapons states to comply with their obligations under the
Non-Proliferation Treaty – taken together with an apparent orientation
towards nuclear use by some of these states – has real potential to
create a tendency towards proliferation. The logic of the ‘deterrent’
notion is that all states need nuclear weapons to protect themselves.
This point has also been made by Nobel Laureate Professor Sir Joseph
Rotblat, ‘If some nations – including the most powerful militarily
– say that they need nuclear weapons for their security, then such
security cannot be denied to other countries which really feel insecure.
Proliferation of nuclear weapons is the logical consequence of this
The most effective way to insure against future nuclear threats is
to work towards nuclear disarmament, rather than pursuing a path
which is certain to contribute to proliferation. Britain’s future security
will be best provided for by pursuing global disarmament initiatives
in tandem with the decision not to replace Trident. Hans Blix’s
recent suggestion of a World Summit on nuclear disarmament, non-
proliferation and terrorist use of weapons of mass destruction, must be
pursued by our government. So too must support for the draft Nuclear
Weapons Convention currently lodged with the United Nations. Such
a Convention would outlaw all nuclear weapons and would provide
for full processes of inspection and verifi cation. A number of states
have voluntarily given up nuclear weapons since the end of the Cold
War, and vast parts of the world have declared themselves as nuclear
weapons-free zones, so practical routes to disarmament already exist. 4. Our international legal obligations Widespread international concerns about the dangers of proliferation
and the spiraling nuclear weapons stocks of the nuclear weapon states
resulted in the nuclear Non-Proliferation Treaty (NPT) coming into
force in 1970. The UK was one of the fi ve states that had already
acquired nuclear weapons by that stage and those states without
nuclear weapons agreed not to acquire them in exchange for those
with nuclear weapons agreeing to disarm. The UK does not have the
right to possess nuclear weapons under the treaty; instead it is legally
Article VI of the NPT
‘Each of the Parties to the Treaty undertakes to pursue negotiations
in good faith on effective measures relating to cessation of the
nuclear arms race at an early date and to nuclear disarmament, and
on a Treaty on general and complete disarmament under strict and
This requirement was strengthened at the 2000 NPT Review
Conference, with the addition of the commitment by the nuclear
weapons states to ‘an unequivocal undertaking to accomplish the total
elimination of their nuclear arsenals.’
In 1996, the International Court of Justice ruled that ‘the threat or
use of nuclear weapons would be generally contrary to the rules of
international law applicable in armed confl ict and in particular the
principles and rules of humanitarian law.’ 8
Recent statements that Britain would be prepared to use nuclear
weapons in a fi rst strike capacity, even against a non-nuclear weapons
state, are contrary to international law, contribute to global tensions
5. The legality of Trident Replacement Recent legal opinion makes it clear that a replacement of Trident
would not be acceptable under the NPT. In 2005, a legal opinion was
produced by Rabinder Singh QC and Professor Christine Chinkin on
‘The Maintenance and Possible Replacement of the Trident Nuclear
Missile System’. In their opinion, the replacement of Trident is likely
to constitute a breach of Article VI of the NPT.
Singh and Chinkin further hold the opinion that such a breach would
‘The linkage between the principles of non-proliferation and
the obligation to negotiate towards disarmament shown by
the negotiation history…indicate that Article VI is a provision
‘essential to the accomplishment of the object or purpose of the eaty The non-nuclear weapon states required commitments from
the nuclear weapon states as part of their willingness to accept non-
nuclear status under the NPT and failure to comply with article VI
thus, in our view, constitutes material breach.’ 9
The fi nal sentence quoted further indicates the signifi cance of
compliance with the disarmament requirements of the NPT. For the
UK to do otherwise will have a negative impact on the compliance of
non-nuclear weapon states with the non-proliferation requirements of
6. The cost to British society Whilst a replacement cannot be fully costed, initial estimates suggest
that the replacement of Trident with a similar system would cost in
the region of £25 billion. This amount could be much better spent
on the improvement of public services, including health provision,
the basic state pension, and education. It is estimated that £25 billion
is equivalent to 60,000 newly qualifi ed nurses and 60,000 new
secondary school teachers for the next ten years. The money could
also be spent on meeting conventional defence and security needs, or
meeting the challenge of climate change. Recent estimates suggest
that when the annual costs of maintaining Trident throughout its
life are added, the total bill could add up to £76 billion. Scientifi c,
engineering and manufacturing skills, currently employed in the
nuclear weapons sector need not be lost; they must be redeployed
through a government-backed defence diversifi cation programme
into decommissioning, secure disposal of nuclear waste, and other
The decision not to replace Trident will help shape the type of world we will face in decades to come. Active support for disarmament and non-proliferation will help prevent a new nuclear arms race and increased proliferation. Choosing to replace Trident will ensure that we will face the nuclear threats in the future that we most wish to avoid. The choice we face today is clear: nuclear disarmament or nuclear proliferation and war. A bold initiative by our government not to replace Trident, together with strong promotion of multilateral initiatives, can help reshape the global security context and ensure a future free from the threat of nuclear annihilation. Notes 1 House of Commons Defence Committee, The Future of the UK’s Strategic Nuclear Deterrent: the Strategic Context, Eight Report of Session 2005-
06, The Stationery Offi ce Limited, paragraph 88.
2 House of Commons Debate, 19 October 2005, Column 841.
3 Ministry of Defence, The Strategic Defence Review, Cm 3999, July 1998,
4 House of Commons Defence Committee, The Future of the UK’s Strategic Nuclear Deterrent: the Strategic Context, Eight Report of Session 2005-
06, The Stationery Offi ce Limited, paragraph 95.
5 Patrick Wintour and Martin Kettle, Britain faces long-term nuclear threat and must plan for it, says Reid The Guardian, 13 September 2005 at
http://www.guardian.co.uk/uk_news/story/0,,1568470,00.html
6 Kofi Annan speaking at the UN 60th anniversary event, London, January
7 Joseph Rotblat, Science and Nuclear Weapons: Where do we go from here? The Blackaby Papers, no 5, Dec 2004, p.7.
8 International Court of Justice, 1996, Legality of the Threat or Use of
9 Peacerights, The Maintenance and Possible Replacement of the Trident
Missile System, joint opinion, Rabinder Singh QC and Professor Christine
Campaign for Nuclear Disarmament
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