Mandate Complexity and United Nations Peacekeeping Contributions

United Nations peacekeeping is an important instrument for maintaining international peace, but the mandates that peacekeeping operations are expected to implement are increasingly complex. This trend has consequences. We argue that certain member states are incentivized by the benefits of partaking in complex missions. These include 'process' benefits such as reimbursement payments, training, and reputation building. Specifically, non-democratic states are more likely to make greater contributions to missions with complex mandates than democratic states. In a global analysis of UN member peacekeeping contributions from 1990 to 2022, we show that as mandate complexity increases, non-democracies make larger contributions relative to democracies. While democracies do not shy away from supporting peacekeeping, they resist substantial contributions to the ambitiously mandated missions that they have often themselves promoted. These findings contribute to ongoing academic discussions about the challenge of recruiting sufficient resources to pursue peacekeeping while insisting on a liberal global order.