On 22 March 2019, the Committee published written evidence from Prof Nicholas J Wheeler (Director, ICCS) and Paul Schulte (Honorary Professor, ICCS) submitted in response to the call. In their response, Wheeler and Schulte emphasise the challenges that new technologies pose to the nuclear sphere, particularly in the context of political mistrust between nuclear-armed and –arming states. They argue that the development of Confidence and Security Building Measures, with cross-state agreement, would provide a structure through which to ease tensions in any potential nuclear crisis. They also outline the limitations of the Treaty on the Prohibition of Nuclear Weapons (known as the Ban Treaty), the implementation of which is fundamentally hampered by the lack of support from the current nuclear states. They argue in favour of the P5 (China, France, Russia, the UK and the USA) as a necessary part of the global nuclear infrastructure and support plans for a nuclear code of conduct to be adopted by all five countries. This ties in with research currently being undertaken on the concept of Nuclear Responsibilities by the ICCS in associated with the British American Security Information Council (BASIC). A recent report from a nuclear roundtable held in Japan can be downloaded here.