Tag: Nuclear deterrence

Implications of a nuclear weapons ban treaty for Japan

Japan—both a nuclear umbrella state and the only country to have suffered attacks by nuclear weapons—will be facing some very difficult decisions as the process towards a treaty prohibiting nuclear weapons moves forward.

By Nobuo Hayashi  and Hirofumi Tosaki 
November 2016

On 27 October 2016, the UN General Assembly’s First Committee voted to commence negotiations in 2017 for the adoption of a legally-binding instrument to prohibit nuclear weapons. This latest development in the movement known as the “Humanitarian Initiative” comes at a time when the divide between the proponents and opponents of a nuclear weapons ban has become increasingly entrenched.

Under my umbrella

Understanding the terms ‘nuclear umbrella’ and ‘nuclear umbrella state’

By ILPI
5 August 2016

The term ‘nuclear umbrella’ is frequently used to describe military alliances that maintain the option of using nuclear weapons in their collective defence. Yet despite its widespread use, the concept lacks a precise definition, and there does not seem to be agreement on exactly which states should be referred to as ‘nuclear umbrella states’.

Trident & the unilateralist taboo

Overview of the British nuclear policy debate and examining the decision to renew Trident

By Paul D. Beaumont

This policy paper provides a critical overview of the major points of contention in the British nuclear policy debate, before examining the decision to renew Trident in 2007 in more detail, and evaluating the prospects for reversal. The paper concludes with reflections on where the current policy trajectory will likely lead the UK and the potential difficulties associated with this strategy.