Lord Ricketts spent 40 years as a British diplomat before retiring in early 2016. His last post was Ambassador to France, where he was heavily involved with UK-French defence cooperation following from the 2010 Lancaster House Treaties.
He was a member of the Advisory Commission for the 2013 French Defence White Paper. Before that he was the UK's first National Security Adviser (2010-12) and Permanent Under-Secretary at the FCO (2006-10). A particular strand to his career has been crisis management and politico-military affairs; he was involved in policy on the UK interventions in the Balkans, Iraq, Afghanistan and Libya. Sir Peter was British Permanent Representative to NATO 2003-6.
Lord Ricketts is a Visiting Professor at King's College London, a Non-Executive Director of Groupe Engie, and Honorary President of the Normandy Memorial Trust building the British national memorial to those who fell under British command in the 1944 battle of Normandy.