Waves of the Black Banner: An Exploratory Study on the Dutch Jihadist Foreign Fighter Contingent in Syria and Iraq opencrim December 16, 2017 Waves of the Black Banner: An Exploratory Study on the Dutch Jihadist Foreign Fighter Contingent in Syria and Iraq2017-12-16T07:36:20+00:00 Studies in Conflict & Terrorism . Go to Source Author: Reinier Bergema