In late July 2025, the civil society organizations Fundación Alvaralice, from Cali, Colombia, and Foro Regional de Rosario, from Rosario, Argentina, and the city government of Rosario came together in a tailored peer exchange that revealed key insights into advancing violence prevention through community mediation and multistakeholder collaboration. It emphasized the importance of creating inclusive spaces for social leaders to connect, share experiences, and receive emotional support, especially when working in high-conflict environments. The combination of violence interruption and mediation, adapted to local contexts, was highlighted as a sustainable approach to violence prevention. Crises in both cities served as catalysts for multisector alliances, demonstrating the important
potential of coordinated efforts among governments, civil society, and the private sector to respond to these events, but also as crucial infrastructure to prevent future crises from occurring. The exchange also led to concrete next steps, including a Memorandum of Understanding between the cities of Cali and Rosario and the potential creation of a community of practice for mediators, aimed at fostering ongoing collaboration and resilience among regional actors.