This edited book addresses the appropriateness of US and other counter-terrorist (CT) strategies in Europe and Eurasia, the Middle East, the Asia Pacific region and in Latin America, with a view to improving their effectiveness. The book has three main objectives: to re-examine terrorists’ strategic goals and sources of legitimacy and the nature of their ideological support to analyze current US and regional CT strategies and assess their success in de-legitimizing terrorists and undermining their support to provide a strategic synthesis and policy recommendations in light of the research findings. This book will be of interest to students of political violence and terrorism, security studies and international relations in general.