Łukasz Kulesa is Deputy Head of Research at the Polish Institute of International Affairs, working on international security, nuclear deterrence and arms control, and Senior Associate Fellow at the European Leadership Network.
His research interests include nuclear and conventional deterrence, arms control, non-proliferation of weapons of mass destruction, NATO, and Russian security policy. Until December 2025, he was Director of Proliferation and Nuclear Policy research group at the Royal United Services Institute (RUSI). Prior to joining RUSI, he was working with the Polish Institute of International Affairs (PISM). Between 2014 and 2019 Łukasz worked as Research Director at the European Leadership Network (ELN), and between 2010–2012 as Deputy Director of the Strategic Analyses Department at the National Security Bureau, a body providing analytical support to the Office of the President of Poland.
