Jonas Claes is a policy officer at the European External Action Service directorate on the Integrated Approach to Security and Peace (ISP), where he advises on conflict sensitivity and support EU conflict analysis and prevention efforts as part of the Early Warning and Conflict Prevention division (ISP.2). Previously, Claes was a senior program officer in the Center for Applied Research on Conflict at the U.S. Institute of Peace (USIP), where he conducted research and analysis on the prevention of electoral violence and mass atrocities. In this capacity, Claes coordinated USIP prevention projects and consults with senior U.S. and UN officials in fine-tuning prevention practices.