Occasional Paper Series Volume 3 - Publication of the 2019 Nanovic Forum Lecture by David O'Sullivan, Ambassador of the European Union to the United States (2014 - 2019) and Secretary-General of the European Commission (2000 - 2005). The Nanovic Forum is an annual signature lecture sponsored by the Nanovic Institute for European Studies, Keough School of Global Affairs, University of Notre Dame. For more information, visit nanovic.nd.edu.