About Thomas M. Countryman
Born 1957. Thomas M. Countryman is a diplomat.
Thomas M. Countryman (born 1957) is a career diplomat who served as United States Assistant Secretary of State for International Security and Nonproliferation from September 27, 2011 to January 27, 2017.
He joined the United States Department of State in 1982.
He joined the board of directors of the nonpartisan Washington-based Arms Control Association in June 2017, and was elected chair the following October.
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Important facts
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Contemporaries
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Frequently asked questions
Who is Thomas M. Countryman?
American diplomat
When was Thomas M. Countryman born?
Thomas M. Countryman was born in 1957 in United States.
What is Thomas M. Countryman's occupation?
Thomas M. Countryman is a diplomat.
Sources & further reading
· Wikipedia: Thomas M. Countryman
· DBpedia: Thomas M. Countryman
Cite this page
APA: Biography.guide. (2026). Thomas M. Countryman. https://biography.guide/thomas-m-countryman/
MLA: "Thomas M. Countryman." Biography.guide, https://biography.guide/thomas-m-countryman/.
Chicago: "Thomas M. Countryman." Biography.guide. https://biography.guide/thomas-m-countryman/.
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