Dr Poul Erik Christiansen is the Raymond Frankel Nuclear Security Policy Fellow at the American Academy of Arts & Sciences. In this role, he works across the nuclear weapons projects within the Academy’s Global Security and International Affairs program area, with a particular focus on the Promoting Dialogue on Arms Control and Disarmament project. He received his Ph.D. in political science from the University of Ottawa, where his research investigated the communities of “Track-2” nuclear weapons policy experts in the Middle East and South Asia. Previously, he worked for the Pugwash Conferences on Science and World Affairs and at the School of Oriental and African Studies, University of London.