91ÆÞÓÑ

Ryan Tully is a senior fellow at 91ÆÞÓÑ Institute focusing on nuclear deterrence, missile defense, space policy, and European security.

From 2021 to 2024, Mr. Tully was a professional staff member for the House Armed Service Committee and the lead staff for the Strategic Forces Subcommittee. As such, he was responsible for all issues related to triad modernization, missile defense, arms control, and space. From 2018 to 2021, he served on the National Security Council, most recently as the deputy assistant to the president and senior director for European and Russian affairs. In this capacity, he was responsible for coordinating all United States government policy toward Russia and Europe and was the White House lead for US-Russian arms control negotiations. Prior to assuming this role, he was senior advisor for arms control and deputy senior director in the Weapons of Mass Destruction Directorate at the NSC.

From 2011 to 2018, Mr. Tully served in the US Senate, where he was a professional staff member on the Senate Select Committee on Intelligence. He was the SSCI designee and principal advisor to Senators Tom Cotton and Jim Risch, advising them on all matters relating to the US intelligence community. He was the primary SSCI professional staff member for Russia policy, the Department of Energy’s Office of Intelligence and Counterintelligence budget, national laboratories, energy security, and arms control.

Prior to joining the SSCI, he was a deputy staff director for a Senate Homeland Security and Government Affairs Committee and was a Senate military legislative assistant. Leading up to his 13-year service in the US Senate, he was as a legislative fellow in the Office of the Secretary of the Navy, assisting on manpower and force shaping issues. Finally, he has served as an information warfare officer in the US Navy Reserve for eight years, supporting the Defense Intelligence Agency, Naval Criminal Investigative Service, and the North Atlantic Treaty Organization.

Mr. Tully received a master’s degree from the Naval War College in national security studies, a master’s degree in legislative affairs and political management from George Washington University, and a bachelor’s degree from Syracuse University.