This volume in the ""NATO Science for Peace and Security Series"" contains the papers of the Advanced Training Course (ATC) 'Legal Aspects of Combating Terrorism'. The purpose of this course was to support NATO on defence issues related to terrorism and united experts from various disciplines to give participants an understanding of how the various dimensions of the laws and their application fit together. In addition to the lectures that can be found in this book, the course was divided into three modules: the legal response to terrorism in general terms; combating terrorism using lawful mean.