Ancillary activities
- Member | Commissie Vrede en Veiligheid | Adviesraad Internationale Vraagstukken | Remunerated (Utrecht University)
- Member | Sociaal-Wetenschappelijke Raad | Koninklijke Nederlandse Akademie van Wetenschappen | Not remunerated
- Member | Adviesraad | NWO | Not remunerated
- Chair | Radicalisation Awareness Network Academic Board | Not remunerated
- Fellow | Center for Advanced Security, Strategic and Integration Studies | Rheinische Friedrich-Wilhelms-Universität in Bonn | Not remunerated
- External Faculty Member | Institute for Advanced Study (IAS) | Universiteit van Amsterdam | Not remunerated
- Member | Raad voor Geesteswetenschappen | Koninklijke Nederlandse Akademie van Wetenschappen | Not remunerated
- Member | Raad van Toezicht | Duitsland Instituut (DIA) | Not remunerated