This episode is a deep dive into insurgency and counterinsurgency in the Philippines, presented through the perspectives of two guests with many years of experience in Philippine counterinsurgency efforts. Dr. Joe Felter and retired Col. Dennis Eclarin discuss the history and evolution of insurgency and counterinsurgency in the Philippines, with a focus on US support to building effective counterinsurgency forces in both the pre- and post- 9/11 eras. Based on shared operational perspectives and collaboration on research—specifically an extensive micro-conflict database—they describe what makes COIN forces effective. They then discuss the implications of their lessons learned for counterinsurgency and security efforts around the world.