This accessible text explores how terrorist groups and individuals are steered and mitigated by ideology. Specifically, six ideological group types are considered: Nationalist/Separatist; Left Wing; Right Wing; Religious; Environmental; and Mixed Groups. The book fervently argues that terrorist groups are not monolithic entities, and that guiding views influence both choices and behavior. This includes tactic and target choices, recruitment, and outward communications.By examining groups on an ideological level, deeper granularity is achieved and differences among group types become clear....