Joanna Siekiera is a nonresident fellow in the Indo-Pacific Security Initiative at the Atlantic Council’s Scowcroft Center for Strategy and Security. She is an expert in international law, NATO consultant, trainer, and educator. Siekiera also currently works as an assistant professor at the War Studies University in Warsaw, Poland. She is also a fellow at the US Marine Corps University in Quantico and supports various military institutions as a legal subject matter expert and course facilitator.  

Siekiera has written more than one hundred scientific publications in several languages, as well as legal opinions for the Polish Ministry of Justice. She is also the author of the book Regional Policy in the South Pacific and the editor of thirteen monographs on international law, international relations, and security. Her areas of expertise are the law of armed conflict (lawfare, legal culture in armed conflict, NATO legal frameworks), the Indo-Pacific region, Pacific law, and maritime security. 

Siekiera conducted her postdoctoral research on the legal consequences of ocean change in Oceania at the Faculty of Law, University of Bergen, Norway. She completed her PhD studies in Pacific regionalism at the Faculty of Law, Victoria University of Wellington in New Zealand. She has worked in Polish diplomatic missions in Canada and Estonia. She speaks eight languages and is currently learning Chinese.