1 Terrorism in the World, Today and Yesterday 2 What Is Terrorism? Definition and Classification 3 Strategy, Tactics, Weapons, and Targets 4 State Sponsors and Supporters of Terrorism 5 Religious Justification for Terrorism 6 Ethnic and National Bases of Terrorism 7 Terrorism and Ideologies of the Left 8 Terrorism and Ideologies of the Right 9 Terrorism and Multiple Motivations 10 State Use of Domestic Terrorism Instead of Repression 11 Countries with Multiple Crises of Terrorism 12 Counterterrorism 13 Terrorism: A Continuing Phenomenon