V. A. Röling, B. Keywords: Laws of war | Judicial competence | International criminal law | International humanitarian law | Mots clefs: Droit de la guerre | Compétence étatique | Droit pénal international | Droit humanitaire international | ABSTRACT B.V.A. Roeling's course discusses the relationship between the law of war and the repression of war criminals during the post-war period. The author successively examines the right and duty to punish war criminals, the jurisdiction of the court and some excuses or mitigating circumstance…