Règle correspondante
Belgium
Practice Relating to Rule 12. Definition of Indiscriminate Attacks
Section C. Attacks whose effects cannot be limited as required by international humanitarian law
Belgium’s Law of War Manual (1983) states in its chapter on the conduct of hostilities: “The expression ‘indiscriminate attacks’ means: … c. those which cannot be limited as required by the [1977 Additional Protocol I].” 
Belgium, Droit Pénal et Disciplinaire Militaire et Droit de la Guerre, Deuxième Partie, Droit de la Guerre, Ecole Royale Militaire, par J. Maes, Chargé de cours, Avocat-général près la Cour Militaire, D/1983/1187/029, 1983, p. 28.