This work examines terrorist activity worldwide from the mid-1990s to the 21st century. It covers the attack on the World Trade Center, the "War on Terrorism", and the escalating violence in Israel and Palestine, offering historical context by terrorism and counter-terrorism experts. It investigates key issues and events related to global and domestic terrorism, as well as future trends in terrorism and counter-terrorism. The work includes entries on terrorist individuals, organizations, and activities around the globe, and also features a complete volume of primary source documents relating to terrorism from ancient times to the 21st century.