Understanding Terrorism: Challenges, Perspectives, and Issues offers a multidisciplinary, comprehensive exploration of contemporary terrorism that helps readers develop the knowledge and skills they need to critically assess terrorism in general and terrorist incidents. The Fifth Edition has been comprehensively updated with new information on terrorist incidents, evolving terrorist environments, and emerging perspectives on counterterrorism and security. Author Gus Martin provides a fresh analysis of violent extremism throughout, with discussions of both international and domestic challenges and options. Focused discussion is provided on contemporary threats, new movements and tendencies, and the effectiveness of responses to these scenarios. Profiles are provided of prominent individuals, including updated information on longstanding extremist personalities. Discussion of policies and responses to terrorist environments has been augmented to include new perspectives on counterterrorist options, comparisons of domestic and international scenarios, and the contexts of promoting regional and national security. The effectiveness of policy options is discussed within the contexts of international threat scenarios, as well as domestic scenarios, including regional security challenges and responses.