Gijs Weijenberg

Gijs is a Security Consultant at Forth Global since August 2021. He is also currently a Board Member of YATA Netherlands. Previously, he was a member of the ICCT team, initially as an intern and later worked as a Project Manager. His work centred on Small Arms and Lights Weapons (SALW) as a source of terrorist financing as well as Foreign Fighters.

Gijs is a graduate of International Security at the Institute of Political Science of Paris (Sciences Po). After earning a BA in World Politics from Leiden University College in The Hague, he did an internship at the Dutch Embassy in Algiers, Algeria, and at a private security firm. Reflecting these earlier experiences, Gijs’ main fields of interest include military strategy, diplomacy, crisis management, and civil-military relations. Moreover, Gijs has served as a board member to the Sciences Po Cybersecurity Association, which aims to link international students of political science to policy makers and professionals in the cyber domain.


Van Dongen, T., Weijenberg, G., Vugteveen, M., and Farrell-Molley, J. Foreign volunteers in Ukraine: security considerations for Europe. Perspective, The International Centre for Counter-Terrorism, 04 May 2022

Demuynck, M. and Weijenberg, G. The Upcoming SADC Intervention: A New Way Ahead to Combat Terrorism in Mozambique? Perspective, The International Centre for Counter-Terrorism – The Hague, 21 July 2021

Weijenberg, G. and de Roy van Zuidewijn, J. The Forgotten Front: Dutch Fighters in Ukraine. Perspective, The International Centre for Counter-Terrorism – The Hague, 16 July 2021.

Weijenberg, G. and Demuynck, M. Algeria in Mali: A Departure from the Military Non-Intervention Paradigm? Perspectives, The International Centre for Counter-Terrorism – The Hague, December 2020.