When insurgents’ motivations are resource-driven, terrorists tend to compete for popular support. Terrorism poses a significant global threat, destabilizing nations, weakening economies, and challenging democratic institutions. Addressing terrorism requires international collaboration, especially between regions such as Indonesia and Africa, which face similar issues related to weak state institutions and extremist violence disrupting state-building. While research on international peacebuilding efforts initiated by the powerful states has been widely studied, Indonesian-African cooperation in limiting terrorist activities remains underexplored. This research fills that gap by examining how young democratic nations like Indonesia and African countries implement counterterrorism strategies through governmental cooperation in delegitimizing and countering terrorism. The focus is on peacebuilding efforts aimed at restricting terrorist groups’ movement, influence, and support networks. The data collected through case studies and policy analysis, focusing on diplomatic and developmental initiatives, as well as security strategies, including military deployments under United Nations peacekeeping missions, to eluate their effectiveness in counterterrorism. The findings show that ongoing collaboration between Indonesia and African nations has effectively reduced terrorism by enhancing political stability, economic development, and social resilience. These initiatives play a crucial role in weakening terrorist movements and dismantling their support networks. The study highlights the importance of regional and global cooperation in addressing the root causes of terrorism and emphasize the need for comprehensive counterterrorism strategies and sustained international collaboration to achieve lasting peace and security.