Terrorism is one of the primary concerns of the modern world and is increasingly becoming a major factor in all international relations in the 21st century. This revised and updated second edition of a major reference work in the area contains definitions and descriptions of all aspects of terrorism and political violence, including: individual terrorists, (e.g. Osama Bin-Laden, Carlos, Yasser Arafat, Abu Nidal, Unabomber) terrorist organisations, (e.g. Al-Qaeda, IRA, FARC, Hizbollah, Shining Path) terrorist incidents, (e.g. September 11th, Oklahoma Bombing, Omagh bombing, Bali bombing) countries affected by terrorism, (e.g. Israel, Columbia) types of terrorism, (e.g. eco-terrorism, bioterrorism, cyberterrorism) measures against terrorism, (e.g. counter-terrorism, Europol, CIA, FBI, etc.) forms of political violence, (e.g. civil war, ethnic conflict, kidnapping) history of terrorism, (eg. terrorism in the 1960s, 21st century terrorism) psychology of terrorism (e.g. terrorist types, terrorist beliefs) With a select bibliography for each reference and a detailed cross-referencing system throughout, the revised edition is an excellent resource for academics, students and policymakers alike.