The transatlantic relationship remains at the heart of the international system in the 21^st century. While other countries, regions, and non-state entities affect the distribution of capital, security, and law around the globe, Europe and United States still dominate security provisions, economic output, investments and international organizations, even as the latter is changing. This course examines the history, current conditions, and prospective future of relations between the United States and Europe, focusing primarily on security, economic, and geopolitical aspects, and ties with third countries such as Russia and China.