Sebastiaan Rietjens holds the special chair of 'Intelligence in War & Conflict' established and funded by the Netherlands Defence Academy. He also is a full professor of Intelligence & Security at the Netherlands Defence Academy. He has done extensive fieldwork in military exercises and operations (Afghanistan (ISAF), Mali (MINUSMA), Greece (FRONTEX), Poland and Baltic States (NATO)) and has published widely in international journals and books. His main research focus is on intelligence during military operations, peacekeeping intelligence, warning for hybrid threats and future developments that confront intelligence organizations. Sebastiaan is a member of the editorial boards of Armed Forces and Society and the International Journal of Intelligence & Counterintelligence, board member of the Netherlands Intelligence Studies Association (NISA) and editor of several volumes including the Routledge Handbook of Research Methods in Military Studies (Routledge, 2014).

Publications