In addition to his work for HCSS, Reinier Bergema conducted (independent) research on Dutch jihadist foreign fighters travelling to Syria since the violent escalation of the conflict in 2011, combining both quantitative and qualitative research methods. Part of this research involved the development of a database, including 200+ Dutch jihadists who remain(ed) in Syria and Iraq.
Open source investigation platform Bellingcat published his article titled ‘Jihad Joris: Dutch Converts Waging Jihad in Syria and Iraq.’
Read the article here.