Deterrence and defence policies are at the core of Britain’s Trident replacement policy debates. The strategic foreign policy implications of the replacement debate for Britain also require closer consideration. The panellists addressed the various potential foreign policy implications of the Trident replacement decision particularly in terms of Britain’s international status and influence.  

Read a report of the discussion


Sir Jeremy Greenstock served in the UK diplomatic service from 1969 to 2004.  He was UK Ambassador to the United Nations for five years and Chairman of the UN Security Council's Counter-Terrorism Committee. He is Chairman of Gatehouse Advisory Partners and of Lambert Energy Advisory and a Non-Executive Director of De La Rue plc. Sir Jeremy has been Chairman of the UNA-UK Board of Directors since February 2011.

Lord David Hannay served as British Permanent Representative to the European Communities (1985-90) and then to the United Nations (1990-95). For five years, Lord Hannay served as Chair of the Board of United Nations Association-UK. He is currently Joint Convenor of the All-Party Group on Global Security and Non-Proliferation and a member of the Top Level Group of UK Parliamentarians for Multilateral Nuclear Disarmament and Non-Proliferation.

Sir Richard Mottram was a permanent secretary in the British civil service from 1992-2007. His appointments include Permanent Under Secretary, Ministry of Defence (MOD) (1995-1998) and Permanent Secretary, Intelligence, Security and Resilience and Chairman of the Joint Intelligence Committee, Cabinet Office (2005-7). He is currently chairman of Dstl and Amey plc and board member of various private and public sector organisations and is also Visiting Professor at the London School of Economics and Political Science.

Lord Gus O’Donnell was Head of the British Civil Service and Cabinet Secretary between 2005 and 2011. His various current affiliations include amongst others, Senior Adviser at Frontier Economics and Senior Fellow at the Civil Service College. He is also Visiting Professor at the London School of Economics and Political Science and at University College, London.  

This meeting was chaired by Mark Fitzpatrick, Director of Non-proliferation and Disarmament Programme at the IISS.

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Event details

Discussion Meeting
Sir Jeremy Greenstock, Chairman of the UNA-UK Board of Directors; Chairman, Gatehouse Advisory Partners and Lambert Energy Advisory
Lord David Hannay, Joint Convenor, All-Party Group on Global Security and Non-Proliferation, House of Lords
Sir Richard Mottram, Former Permanent Under Secretary, MOD; Chairman of Dstl and Amey plc
Lord Gus O’Donnell, Former Head of the British Civil Service and Cabinet Secretary
Arundel House, London
Wednesday 13 March 2013