UK's Nuclear Deterrent Debate

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Department: Cabinet Office

UK's Nuclear Deterrent

Anne McLaughlin Excerpts
Monday 18th July 2016

(8 years ago)

Commons Chamber
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Theresa May Portrait The Prime Minister
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The hon. Gentleman is absolutely right. Of course, the last Labour Government held votes in this House on the retention of the nuclear deterrent. It is a great pity that there are Members on the Labour Front Bench who fail to see the necessity of the nuclear deterrent, given that in the past the Labour party has put the British national interest first when looking at the issue.

I want to set out for the House why our nuclear deterrent remains as necessary and essential today as it was when we first established it. The nuclear threat has not gone away; if anything, it has increased.

First, there is the threat from existing nuclear states such as Russia. We know that President Putin is upgrading his nuclear forces. In the past two years, there has been a disturbing increase in both Russian rhetoric about the use of nuclear weapons and the frequency of snap nuclear exercises. As we have seen with the illegal annexation of Crimea, there is no doubt about President Putin’s willingness to undermine the rules-based international system in order to advance his own interests. He has already threatened to base nuclear forces in Crimea and in Kaliningrad, the Russian enclave on the Baltic sea that neighbours Poland and Lithuania.

Secondly, there is the threat from countries that wish to acquire nuclear capabilities illegally. North Korea has stated a clear intent to develop and deploy a nuclear weapon, and it continues to work towards that goal, in flagrant violation of a series of United Nations Security Council resolutions.

Theresa May Portrait The Prime Minister
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I am going to make some progress. North Korea is the only country in the world to have tested nuclear weapons this century, carrying out its fourth test this year, as well as a space launch that used ballistic missile technology. It also claims to be attempting to develop a submarine-launch capability and to have withdrawn from the nuclear non-proliferation treaty. Based on the advice I have received, we believe that North Korea could already have enough fissile material to produce more than a dozen nuclear weapons. It also has a long-range ballistic missile, which it claims can reach America, and which is potentially intended for nuclear delivery. There is, of course, the danger that North Korea might share its technology or its weapons with other countries or organisations that wish to do us harm.

Thirdly, there is the question of future nuclear threats that we cannot even anticipate today. Let me be clear why this matters. Once nuclear weapons have been given up, it is almost impossible to get them back, and the process of creating a new deterrent takes many decades. We could not redevelop a deterrent fast enough to respond to a new and unforeseen nuclear threat, so the decision on whether to renew our nuclear deterrent hinges not just on the threats we face today, but on an assessment of what the world will be like over the coming decades.

It is impossible to say for certain that no such extreme threats will emerge in the next 30 or 40 years to threaten our security and way of life, and it would be an act of gross irresponsibility to lose the ability to meet such threats by discarding the ultimate insurance against those risks in the future. With the existing fleet of Vanguard submarines beginning to leave service by the early 2030s, and with the time it takes to build and test new submarines, we need to take the decision to replace them now.

Maintaining our nuclear deterrent is not just essential for our own national security; it is vital for the future security of our NATO allies.