Project Background: The Advanced Systems and Concepts Office of the Defense Threat Reduction Agency (DTRA/ASCO) has enunciated the “need to model and simulate on a computer terrorist leader and follower behavior for the purpose of Threat Anticipation.” In this regard DTRA/ASCO approached the Terrorism Research Group at the Center for Nonproliferation Studies (CNS) to conduct a review of research literature and practice in this field. Project Goal: To determine the most relevant, state-of-the-art research applicable to computer modeling of terrorist individual and group behavior for Threat Anticipation purposes. This goal can be further divided into the following sub-goals: a) identification of those individuals or teams conducting this research b) obtaining a description of the research being conducted or already completed c) noting where this research is taking place, both geographically and organizationally d) ascertaining the relevance of the research for use in terrorist Threat Anticipation