Règle correspondante
Belgium
Practice Relating to Rule 12. Definition of Indiscriminate Attacks
Section B. Attacks which cannot be directed at a specific military objective
Belgium’s Law of War Manual (1983) states: “ Indiscriminate attacks are: … (b) attacks which employ means or methods which cannot be directed at a specific military objective”. 
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. 27.