This week the Federal Conference Committee will decide whether to allow Conference to debate the UK joining the UN multilateral nuclear disarmament Treaty.
Lib Dems, like the other main parties, have been unwilling to be seen as unilateralist but since the Trident debate a most important new initiative from the UN has changed the nuclear weapons landscape.
The Treaty on the Prohibition of Nuclear Weapons, supported at the UN General Assembly by 122 countries, will place nuclear weapons in the same category as other WMDs -illegal under International law. Also, importantly, it provides a framework and a pathway to their eventual total elimination. If we are to live up to our statement that we support multilateral disarmament, internationalism and a long term view we must debate and, I believe, support it.
The Treaty grew out of three Conferences on the Humanitarian Consequences of Nuclear War. As the scientists, medics and civil society examined various scenarios it became starkly clear that now, with more powerful weapons, more countries possessing them and a modernisation programme planned in several countries the scenario was even bleaker than at the height of the Cold War. Even a limited regional nuclear exchange would have environmental consequences for agriculture that would lead to the risk of billions starving. They also found that no medical response could be adequate. As the International Red Cross said as the UN debated the Treaty
The treaty alone will not make nuclear weapons disappear overnight. But it delegitimises their role in the world today and provides a strong disincentive for their proliferation. The treaty signals to all that any development, modernising, testing, threat or plan to use nuclear weapons by anyone is completely unacceptable.
The timescale is important and practical. Nuclear states will not relinquish their weapons overnight. In the current febrile atmosphere of Russian/Chinese /US relations there are likely to be decades of work to do the create the necessary trust, verification and de escalation.