What incentives do armed actors have to operate in subterranean environments? What are some of the unique challenges that underground spaces pose to military forces? And why is underground warfare occurring increasingly frequently? To explore those questions and other features of conflict in the exceptional terrain of the subterranean, this episode features a conversation with Dr. Daphne Richemond-Barak, an assistant professor at the Lauder School of Government, Diplomacy, and Strategy, head of the international law desk of the International Institute for Counter-Terrorism at IDC Herzliya, and author of the book Underground Warfare.