Alex Tiersky, Senior Policy Advisor


Alex Tiersky serves as the Commission’s Global Security and Political-Military Affairs Advisor. In that capacity, he has responsibility for a broad portfolio of “first dimension” issues throughout the OSCE space and beyond. He also serves as the host of the Helsinki Commission’s podcast series, Helsinki on the Hill.

A former Specialist in Foreign Affairs at the Congressional Research Service, Alex also served as Director of the Defense and Security Committee of the NATO Parliamentary Assembly, where he worked with legislators from dozens of countries to influence security policy across the Alliance.  

From 2004 to 2007, Alex served as Foreign Affairs Officer and Presidential Management Fellow at the U.S. Department of State, where he held various positions with responsibility for U.S.-Russian strategic nuclear issues, conventional arms control and other political-military affairs in Europe, as well as at NATO headquarters in Brussels. 

Alex has also worked as a researcher at the Council on Foreign Relations and as the Assistant Director for the Global Reporting Network at New York University’s Center for War, Peace, and the News Media. 

Alex holds degrees from the School of Advanced International Studies (SAIS) at Johns Hopkins; the Institut d’Etudes Politiques (Sciences Po); and Tufts University.