Article 5 of the Statute of the International Criminal Court verifies the four most serious crimes to the international community as a whole upon which the Court shall have jurisdiction. Though it includes the crime of aggression the Statute lacks a definition of that crime. The purpose of the article is to offer a sustainable definition. It discusses the constitutive elements of the crime, focussing on the crucial points in a debate that has been actively engaged in for the past 50 years. Certainly, the crux of the matter lies in the role the Security Council should play in this regard. […] there has been a persistent undercurrent of opinion expressive of the view that there is no fixed limit to the possibilities of judicial settlement; that all conflicts in the sphere of international politics can be reduced to contests of a legal nature; that the only decisive test of justiciability of the dispute is the willingness of the disputants to submit the conflict to the arbitrament of law.H. Lauterpacht