The subject of the present monograph is the preconditions for the exercise of jurisdiction of the International Criminal Court (ICC). In the ICC Rome Statute (ICCRSt), the Court’s jurisdiction revolves around the commission of international crimes, i.e. war crimes, crimes against humanity, genocide and most recently the crime of aggression. It is apparent that the interpretation of those multifaceted terms, as well as other similar notions also contained in the ICCRSt (e.g. ‘conflict’, ‘attack’ and ‘immunities’), constitutes a fundamental criterion regarding whether or not the Court will eventually intervene. However, when interpreting such general concepts, it is reasonable to include considerations of ‘extralegal’ character, and, especially, the way that the interests of great geostrategic forces are served. Hence, the quest for the concepts’ true meaning in certain cases cannot be fulfiled solely via purely dogmatic legal approaches, and also involves a wider approach, with emphasis on those political and historical factors that decisively impact the rendering of decisions by the International Criminal Court. Otherwise, the interpretation of these legal concepts will be incomplete and exclude from the research’s scope the deeper reasons behind the preference for one interpretive approach over the other.