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Press release

Quarterly Updates: The Foreign Terrorist Fighters Knowledge Hub

17 Nov 2023

The Foreign Terrorist Fighters (FTF) Knowledge Hub, an open-access online resource developed by the T.M.C. Asser Instituut and the International Centre for Counter-Terrorism (ICCT), has just been updated to incorporate recent developments surrounding states’ responses to foreign terrorist fighters. In doing so, the FTF Knowledge Hub continues to be an essential resource on FTFs and states’ responses to them.

In total, 29 data points, involving 10 states, were updated. Among other important developments, recent trends in the prosecution of U.S. returnees, as well as the movements of Spanish FTFs, are reflected. In addition, the website’s standards and guidance section has been updated and recent literature has been added to the resource library, including new publications on prosecuting Dutch FTFs for core international crimes and repatriations of family members from the MENA region. Furthermore, all domestic policies and legal frameworks have undergone review to reflect the newest developments.


About the FTF Knowledge Hub

The FTF Knowledge Hub is an open-access database concerning states’ responses to so-called ‘foreign terrorist fighters’, or as defined by United Nations Security Council Resolution 2178 (2014): ‘individuals who travel to a State other than their States of residence or nationality for the purpose of the perpetration, planning, or preparation of, or participation in, terrorist acts or the providing or receiving of terrorist training, including in connection with armed conflict’. The FTF Knowledge Hub contains country-specific information on 30 different states, including FTF-related data, administrative and criminal measures, as well as rehabilitation and prevention policies, and is aimed at policy makers, practitioners, academics, journalists and students. The website provides comprehensive and detailed information specifically about FTFs who have travelled to Syria or Iraq.


Provide us your feedback and suggestions

We welcome the contribution of country-specific information, relevant research or data regarding the states included in the FTF Knowledge Hub. To submit information, please fill in our questionnaire, or send it to

For any other questions, suggestions or feedback, please reach out to We review the submitted information on a regular basis.