The ‘humanitarian dimension’ initiative highlighting the consequences of nuclear weapons has evolved and consolidated itself in the non-proliferation regime since 2010. The five nuclear weapons states (NWS or P5) under the NPT – China, France, Russia, UK and US – boycotted the first two international conferences on the humanitarian consequences of nuclear weapons. A third conference will be held in Vienna on 8-9 December 2014. This article gives five reasons why the P5 should consider participating.

The humanitarian impact of nuclear weapons, highlighted by a wide-ranging, cross-grouping, multi-aim initiative which continues to consolidate itself in the non-proliferation regime, has come to the fore in the 3rd Prepatory Committe for the 2015 NPT Review Conference. Frustrated with the lack of progress towards NPT Article VI commitments to complete nuclear disarmament, the initiative has invigorated attention to the urgency of nuclear disarmament and a need for a change in the status quo. NPT member states and civil society continue to engage actively in publicizing the humanitarian consequences of nuclear weapons as an impetus to progress towards nuclear disarmament.