NTI Welcomes Paul Dean to Lead Global Nuclear Policy Program

NTI is pleased to announce the appointment of Paul Dean as vice president of the Global Nuclear Policy Program. In this role, Dean will lead NTI’s efforts to prevent the spread of nuclear weapons, reduce the risk of nuclear use, and ultimately end the existential threat of nuclear war.

“Paul brings exceptional expertise and commitment to reducing nuclear threats,” said Ernest J. Moniz, NTI Co-Chair and CEO. “With extensive experience in arms control, international law, and diplomacy, he is highly qualified to lead our Global Nuclear Policy Program. We are thrilled to have him on board and confident he will drive critical progress in our mission to build a safer world.”

Prior to joining NTI in May 2025, Dean served as Acting Assistant Secretary of State for Arms Control, Deterrence, and Stability. He served concurrently as the U.S. commissioner to the U.S.-Russia Bilateral Consultative Commission, the implementation body for the New START Treaty.

Dean was a career member of the U.S. Senior Executive Service where, over the course of his career at the U.S. Department of State, he handled complex, multi-stakeholder negotiations involving arms control, nonproliferation, international criminal justice, counterterrorism, international arbitration, and economic sanctions.

From 2018–2021, he was legal counselor at the U.S. Embassy in The Hague, where he represented the United States before international legal tribunals and managed U.S. relations with the International Criminal Court. He previously led the U.S. Treaty Office, the Office of Nonproliferation and Arms Control, and the Office of Management. From 2009–2010, he was the U.S. delegation’s legal adviser for negotiation of the New START Treaty with Russia and later worked as the lead executive branch lawyer for the treaty’s ratification.