ABOUT THE SPEAKERS
Sergey Radchenko
Sergey Radchenko is the Rupert Murdoch Distinguished Professor at the Henry A. Kissinger Center for Global Affairs at the Johns Hopkins School of Advanced International Studies. He has written extensively on the Cold War, nuclear history, and Russian and Chinese foreign and security policies. He has served as a global fellow and public policy fellow at the Woodrow Wilson International Center and as the Zi Jiang Distinguished Professor at East China Normal University in Shanghai. His books include To Run the World: The Kremlin’s Cold War Bid for Global Power (2024), Two Suns in the Heavens: The Sino-Soviet Struggle for Supremacy (2009), and Unwanted Visionaries: The Soviet Failure in Asia (2014).
Deborah Rosenblum
Deborah Rosenblum has more than 35 years working in national security and defense. Most recently, she served as the Senate-confirmed assistant secretary of defense for nuclear, chemical, and biological defense programs, as well as acting deputy undersecretary of defense for acquisition and sustainment. Previously, she served as executive vice president at the Nuclear Threat Initiative, a global nonprofit focused on reducing catastrophic risks, and advised corporate clients on business opportunities in the defense and homeland security markets as a vice president at the Cohen Group. She currently serves as a senior consultant to a range of defense companies, non-profits, and academia, and is a distinguished nonresident fellow for nuclear and biological defense at the Chicago Council.
Ariane Tabatabai
Ariane Tabatabai joined the Council in 2026 as the vice president of research, security and defense. She also serves as senior fellow for the Middle East, focusing on nuclear security and regional security dynamics in the Middle East. Previously, Dr. Tabatabai served in the US Departments of State and Defense, including as US deputy assistant secretary of defense for force education and training. She is an expert on nuclear issues, Iranian foreign and security policy, and regional security in the Middle East, and her current research focuses on US alliances and NATO. Dr. Tabatabai has held senior positions at the RAND Corporation, the German Marshall Fund of the United States, the Center for Strategic and International Studies, and Columbia University.
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