National Defense University hosted a delegation from the NATO Defense College’s Senior Officer Course for discussions on major security challenges shaping the transatlantic and global strategic environment. INSS faciliated panel discussions, including U.S. National Defense Strategy and its Implications for NATO and Europe. Speakers were Dr. Lisa A. Aronsson, Research Fellow, Institute for National Strategic Studies (INSS), NDU (Moderator); Dr. Elena Pokalova, Professor, College of International Security Affairs (CISA), NDU; Dr. Justin Anderson, Senior Fellow, INSS, NDU; and Dr. David Auerswald, Professor, National War College, NDU.