Violations of international criminal law (i.e., genocide, crimes against humanity, and war crimes) are a common occurrence around the globe. One need only to read international news, visit intra‐governmental (e.g., United Nations or the International Committee Red Cross), or nongovernmental organizations (e.g., Human Rights Watch or Amnesty International) to be exposed to the vast numbers of crimes of states, paramilitaries, and/or militias. Nonetheless, there has been relatively little attention paid to these types of offenses by criminologists. While there have been developments in creating typologies (Smeulers, 2008) and predictive models for genocide (Harf, 2005), due to the complexities and various forms of these types of crimes, there has been little to no development of a criminological theoretical model that can aid in the analysis of such crimes. Our goal is to firmly place international crimes on the criminological agenda by creating additional awareness of and interest in the most massive, systematic, and gruesome types of crime‐genocide, crimes against humanity, war crimes, and crimes of aggression‐and to introduce an integrated theory that can provide a frame for a systematic analysis and understanding of the etiological factors at play.