“For 50 years, the Arms Control Association has educated citizens around the world to help create broad support for U.S.-led arms control and nonproliferation achievements.”
Thomas Countryman, Board Chairman
Mr. Countryman was the acting undersecretary of state for arms control and international security. He served for 35 years as a member of the U.S. Foreign Service until January 2017, achieving the rank of minister-counselor, and was appointed in October 2016 to the position of acting undersecretary of state. He simultaneously served as assistant secretary of state for international security and nonproliferation, a position he had held since September 2011.
Contact Information:
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Recent Publications and Citations
https://www.armscontrol.org/media-citations/guardian/2026-01-16
Morality, military might and a sense of mischief: key takeaways from Trump’s New York Times interview
January 16, 2026
https://www.armscontrol.org/media-citations/truthout/2026-01-13
January 13, 2026
https://www.armscontrol.org/media-citations/financial-times/2025-11-03
November 3, 2025
https://www.armscontrol.org/media-citations/daily-express-uk/2025-10-27
October 27, 2025
https://www.armscontrol.org/media-citations/national-security-journal/2025-08-20
August 20, 2025