David Millar is a national security analyst and instructor who has trained over 2000 diplomats, military officers, and intelligence analysts around the world. Until 2025 he served as the Global Issues Chair at the Foreign Service Institute, where he trained U.S. diplomats and support staff on topics like malign influence, gray zone conflict, and strategic competition. He previously served as a Tradecraft Instructor and Program Manager at the Defense Intelligence Agency (2016-18), a strategic advisor to Special Operations Command – Pacific (2011-14), and an intelligence analyst focused on the People’s Republic of China (2005-10).