Extremist Foreign Fighters Traveling to Ukraine: Security Risks and Mitigation Measures

Alexander Ritzmann – CEP senior advisor

Joshua Fisher-Birch – CEP research analyst 

Dr. Hans-Jakob Schindler – CEP senior director

Sofia Koller – CEP senior research analyst


Daily Dose

Extremists: Their Words. Their Actions.


On September 23, 2021, the Houthis began a siege on Marib’s al-Abdiyah district, sparking a humanitarian crisis as the rebels blocked medical and other humanitarian aid. Aid workers on the ground accused the Houthis of committing genocide by denying access to humanitarian organizations and shelling hospitals and other vulnerable civilian targets.   

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