Dupuy, Pierre-Marie Keywords: International Law Commission | State responsibility | Mots clefs: Commission du droit international | Responsabilité des Etats | ABSTRACT Pierre-Marie Dupuy, Professor at the University of Law, Economics, and Social Sciences in Paris, successively examines wrongful facts and so-called "facts not prohibited by international law". The criterion of differentiation between the two categories refers to the analysis of the criteria for identifying the legality of a fact of the State, under int…