From peacekeeping to multipolar interventions
Costalli opened by situating the study in the broader evolution of peacekeeping and intervention research. Although UN peace operations have long been the cornerstone of international conflict management, no new UN missions have been launched since 2014 despite ongoing crises. Increasingly, non-UN actors—from regional organizations to individual states—have taken the lead in military interventions. Yet, much of the literature still analyses interventions from a supply-side perspective, focusing on the interveners rather than the societies affected by them.
The team’s project aims to reverse this imbalance by centring local perceptions and agency. Their approach moves beyond measuring peacekeeping “effectiveness” in terms of reduced violence, asking instead how affected communities perceive different interveners and what factors drive their willingness to support or reject them.

