Raphael D. Marcus is a Visiting Research Fellow in the Department of War Studies at King's College London, where he received his PhD. He is also affiliated with the College's Insurgency Research Group, where his research has focused on Middle East security issues, ISIS, crime and terrorism, military affairs, Hamas tunnel warfare, and organizational learning. His areas of expertise include Middle Eastern security and politics, terrorism and counterterrorism, Hezbollah, the Arab-Israeli conflict, and more. He is the author of Israel’s Long War with Hezbollah: Military Innovation and Adaptation Under Fire published by Georgetown University Press in 2018. This book is the first complete military history of the Israel-Hezbollah conflict, and analyzes ongoing processes of strategic and operational innovation and adaptation by both sides throughout the guerrilla conflict.