This book adopts an innovative historical approach to Terrorism, focusing on the weaknesses of terrorist states and organizations as reflected in the ideologies, methodologies and propaganda of Russian populist, National Socialist and Islamic Terrorism.Drawing upon multilingual primary sources, the book challenges the oft repeated claim that the Nazi regime and Islamic State produced propaganda of superior quality, instead arguing that the manipulation of information is the Achilles heel of terrorist organizations. It offers a critical examination of the fears of terrorists themselves, as opposed to the traditional focus on the fear instilled by terrorist organizations in governments and citizens. Taking a multidisciplinary approach and long-term history perspective, the book provides a method for exploring the minds of terrorists and the inner workings of their organizations and traces the evolution of terrorist thought and methodology across time and place.This is the ideal volume for researchers of Terrorism within the fields of History, Politics, Security Studies, Religious Studies and Legal Studies.