This document provides an overview of a synopsis series produced by the Latin America and Caribbean Regional Office (LACRO) of the AIDS Control and Prevention (AIDSCAP) Project. The series aims to highlight lessons learned from over 5 years of implementing HIV/AIDS prevention programs in 14 Latin American and Caribbean countries. It discusses the need to advance new technical strategies to more effectively address the pandemic, including promoting civil-military collaboration. The document introduces a synopsis on civil-military collaboration, focusing on engaging the military in HIV/AIDS prevention and how partnerships with the military can benefit both civilian and military populations.