Abstract
The UK’s status as a nuclear weapon-state has been an integral part of the UK’s role in international affairs. This article traces several role conceptions associated with the UK’s nuclear status, and analyses role adaptation and contestation before and after Brexit. While EU membership (and then Brexit) had little direct impact on the UK as a nuclear-weapon state, we can observe a growing tension between the UK’s role conceptions of a ‘responsible nuclear weapon state’ and ‘nuclear-armed power with a global reach’ since around the time of the 2016 Brexit referendum. The 2021 Integrated Review indicates that the UK’s role conception has shifted towards the latter. At the same time, domestic role contestation, also exacerbated by Brexit, has further challenged the UK’s nuclear status, deepening divisions between the UK and Scottish governments, and placing the UK’s reputation, as well as its future as a Union, on the line.
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Notes
The full list of documents is listed in the bibliography. For an in-depth methodological discussion, see Tight (2019).
Document analysis of UK statements and working papers from 2002 to 2019, drawing from https://ploughshares.ca/pl_publications/states-parties-npt-reports-united-kingdom | https://reachingcriticalwill.org/disarmament-fora | https://www.un.org/disarmament/wmd/nuclear/.
Important to note that the nuclear weapons regime complex also comprises the 2017 Treaty on the Prohibition of Nuclear Weapons (TPNW). The UK rejected the TPNW arguing that nuclear deterrence is necessary due to the ‘unpredictable international security environment’ and that the TPNW both ‘undermines’ and ‘weakens’ the NPT (see HM Government 2017).
Although the 2022 Russo-Ukraine war has impacted the UK’s relations with Russia, including through the P5. France coordinated the P5 Process in 2021, however the UK government often takes on pen-holder responsibilities within the P5 to facilitate progress on certain issues, for example on risk reduction.
In April 2021 44% of Scots polled by YouGov said that Britain should give up nuclear weapons completely, compared to just 18% of those polled in England (YouGov 2022). It is worth noting however, that polling from March 2022 indicated a shift in Scottish public opinion, with support for Trident’s replacement seeing an increase from 20 to 38% since September 2021, likely attributed to the effects of 2022 Russo-Ukraine war.
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Dee, M., Kienzle, B. Between role adaptation and contestation: the UK’s status as a nuclear weapon state after Brexit. Int Polit (2023). https://doi.org/10.1057/s41311-023-00463-7
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DOI: https://doi.org/10.1057/s41311-023-00463-7