Civilian confidence in domestic institutions, particularly in the security sector, is important for stability and state consolidation in post-conflict countries, where third-party peacekeepers have helped maintain peace and security after a conflict. While other scholars have suggested that a strong security sector is necessary for mitigating the credible commitment problem, this article provides two alternative criteria for assessing security sector reforms’ effect on confidence in the security sector: restraint and inclusiveness. Female ratio balancing in the security sector meets these two criteria, suggesting that it has the potential to help enhance confidence in the security sector and thereby create the right conditions for the peacekeeping transition. The argument is tested using original surveys conducted in post-conflict, ex-combatant communities in Liberia. The expectations received empirical support. The findings indicate that restraining and inclusive reforms could improve trust in the state’s security sector. They also demonstrate the importance of considering gender in theories related to post-conflict peace building and international relations more broadly.