The book contains the papers presented at the International Conference on the Question of Terrorism organized by the International Progress Organization (Geneva, March 1987). The various researches offer a new conceptual framework for the term «terrorism». Examples of terrorist acts and their causes are being analyzed in regard to the principles of international law and human rights. Particular attention is given to the distinction between acts of terrorism and acts of national resistance. The violence of the State («State terrorism») is compared to the «reactive» violence of national liberation movements. On the basis of these analyses conclusions are drawn for a more precise terminology in regard to terrorism and international law.