PhD in Politics. Twenty-five years' experience in conflict and post-conflict contexts. Chief Executive, Overseas Development Institute; previously Managing Director, Director of Humanitarian Programmes and Head of the Humanitarian Policy Group (HPG). Recognized writer and public speaker on conflict and humanitarian issues. Vice-Chair of the Board of Trustees, Muslim Aid. Member of the Governing Board, The New Humanitarian. Trustee, SOS Sahel. Has served on a range of advisory boards, including Oxford University's Refugees Studies Centre and the UN Association of the UK. Editor-in-Chief, Disasters journal; approved member of the UN Mediation Roster. Served on the Independent Team of Advisers to the ECOSOC Dialogue on the reform of the UN development system. Previously led a high-profile UN response in Sudan's Nuba Mountains. Former Lecturer, University of Dar es Salaam. Acted as an observer at the IGAD Sudan peace process.