The shocking events of 11 September 2001 in the United States drew worldwide attention to the terrorist phenomenon. This work focuses on terrorism and the struggle against it in Europe - on recent experiences, threat perceptions and the policies of several European countries, including the effects produced by the 11 September attacks. Specialists from Ireland, the United Kingdom, Sweden, the Netherlands, Germany, France, Spain, Italy and Greece analyse the development of threat perceptions concerning terrorism and counter-terrorist policy-making in their respective countries. To facilitate comparisons between their findings, they have worked from an identical set of questions. Their chapters are followed by contributions on relevant policy-making and decisions in the European Union, and on the European input in United Nations policy-making processes. A summary of main conclusions and recommendations is also presented.