This article presents alternative estimates for the demand for UN and non-UN peacekeeping. Generally, three-way fixed-effects models, which account for the country, year, and conflict region, provide the best estimates. The demand for UN peacekeeping is primarily influenced by the contributions of other nations (i.e., spillins), with spillin elasticity not significantly different from 1. For non-UN peacekeeping, both spillins and country-specific interests in the conflict region influence contributions. These peacekeepers’ interests include trade and FDI concerns, along with proximity to the conflict. Peacekeeping missions appear partitioned: UN missions for global public benefits and non-UN missions for peacekeeper-specific benefits.