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.