Registration will open on September 15th.
America’s Strategic Risks: Deterrence and Emerging Threats
Mallory Stewart
CEO, Council on Strategic Risks
Former Assistant Secretary for Arms Control, Deterrence, and Stability, U.S. Department of State
Patron Event
Wednesday, September 30, 2026
6:30 – 8:00 PM
Reception: 6:30 – 7:00 PM
Lecture and Q&A: 7:00 – 8:00 PM
Library at the Cosmopolitan Club
122 East 66th Street
New York, NY 10065
About the Topic
Understanding risks, emerging threats and opportunities for deterrence is especially urgent at a moment of intensifying geopolitical competition, rapid technological change, and growing uncertainty in the international order. Traditional deterrence frameworks are being tested by cyber threats, AI-enabled capabilities, space security challenges, disinformation, and renewed nuclear competition among major powers. Understanding how the United States and its allies can manage these evolving risks is essential to maintaining global stability, protecting democratic institutions, and preventing conflict in an increasingly complex strategic environment.
About the Speaker
Ms. Mallory Stewart is the chief executive officer of the Council on Strategic Risks (CSR), a leading organization focused on anticipating and addressing emerging global security challenges. She previously served as assistant secretary for Arms Control, Deterrence, and Stability at the U.S. Department of State, and as senior director for Arms Control, Disarmament, and Nonproliferation at the National Security Council. Her expertise spans weapons of mass destruction law and policy, missile defense, nuclear deterrence, outer space security policy, and the risks posed by emerging technologies including artificial intelligence. Earlier in her career, she held senior national security positions at Sandia National Laboratories where she led the Co-operative Monitoring Center in its efforts to facilitate scientific engagement for global security. She earned her BA from Harvard College and a JD from Stanford Law School.