Related Rule
Belgium
Practice Relating to Rule 146. Reprisals against Protected Persons
Belgium’s Law of War Manual (1983), citing several examples of jurisprudence, states:
The persons protected by the Geneva Conventions (… prisoners of war …) … may not be made the object of reprisals. Therefore, [reprisals] may be directed only against combatants, non-protected property and a restricted group of non-protected civilians. 
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. 36.
Belgium’s Law of War Manual (1983), citing several examples of jurisprudence, states:
The persons protected by the Geneva Conventions (wounded and sick, shipwrecked …) … may not be made the object of reprisals. Therefore, [reprisals] may be directed only against combatants, non-protected property and a restricted group of non-protected civilians. 
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. 36.
Belgium’s Law of War Manual (1983), citing several examples of jurisprudence, states: “The persons protected by the Geneva Conventions … may not be made the object of reprisals. Therefore, [reprisals] may be directed only against combatants, non-protected property and a restricted group of non-protected civilians.” 
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. 36.
Belgium’s Law of War Manual (1983), citing several examples of jurisprudence and referring to Articles 4 and 33 of the 1949 Geneva Convention IV, states:
The persons protected by the Geneva Conventions (… civilians) … may not be made the object of reprisals. Therefore, [reprisals] may be directed only against combatants, non-protected property and a restricted group of non-protected civilians. 
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. 36.