A review of the discussions of definitions of "terrorism" in the literature identifies the issues that make the defining of terrorism a complex task. Factors in definitions include the effects, psychology, and behavior of terrorists and their motives, ideologies, and politics. The differentiation of terrorism from political violence in general presents numerous problems. Distinctions between terrorism types also compound the difficulty of definitions. An examination of terrorism's goals vis-a-vis the public addresses terrorism's use of the media to induce public fear and propel governments, particularly democratic governments, to adopt repressive measures that will reduce a government's public support. A discussion of some legal considerations in suppressing terrorism in Europe notes some of the difficulties in achieving a consensus among Western European countries regarding counterterrorism tactics. The Council of Europe has led the development of a regional, European response to terrorism. It was not until 1980, however, that the governments were willing to honor related bilateral and multilateral agreements. The chapter concludes with a discussion of the European Convention on the Suppression of Terrorism and the Dublin Agreement. 63 notes.