C.S. Eliot Kang

C. S. Eliot Kang
강주순
4th Assistant Secretary of State for International Security and Nonproliferation
In office
January 8, 2021  January 20, 2025
Acting: January 8, 2021 – March 31, 2022
PresidentDonald Trump
Joe Biden
Preceded byChristopher Ashley Ford
Succeeded byAnn K. Ganzer (Acting)
In office
January 27, 2017  January 8, 2018
Acting
PresidentDonald Trump
Preceded byThomas M. Countryman
Succeeded byChristopher Ashley Ford
In office
January 20, 2009  June 15, 2009
Acting
PresidentBarack Obama
Preceded byPatricia McNerney
Succeeded byVann Van Diepen
Personal details
Born
Choo Soon Kang

1962 (age 6263)
Children2
EducationCornell University (AB)
Yale University (MA, MPhil, PhD)

C.S. Eliot Kang (born in 1962 as Korean: 강주순) is a retired American diplomat and member of the Senior Executive Service. He served as the Assistant Secretary for the Bureau of International Security and Nonproliferation (ISN) at the U.S. Department of State from March 2022 to January 2025.

From December 2024 to January 2025, January to July 2021, and January 2017 to January 2018, Kang also exercised the authority of the Under Secretary of State for Arms Control and International Security Affairs. He also served as acting ISN Assistant Secretary from January 2021 to March 2022, January 2017 to January 2018, and January to June 2009.

Kang is a leading expert on nuclear affairs, including on nuclear safeguards, security, and safety matters as well as denuclearization, counterproliferation, and counter nuclear terrorism issues. Also, he has led on export control diplomacy and policies to prevent and roll back the spread of weapons of mass destruction and their delivery systems as well as to protect critical and emerging technologies from diversion and misuse.