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Belgium
Practice Relating to Rule 88. Non-Discrimination
Section C. Wounded and sick
Belgium’s Field Regulations (1964) provides that wounded and sick soldiers who have laid down their arms shall be treated without distinction based on nationality. 
Belgium, Règlement sur le Service en Campagne, Règlement IF 47, Ministère de la Défense Nationale, Etat-Major Général, Force Terrestre, Direction Supérieure de la Tactique, Direction Générale du Planning, Entraînement et Organisation, 1964, Article 23.
Belgium’s Teaching Manual for Soldiers provides that during search and rescue operations, “no difference shall be made between fellow or enemy wounded and sick”. 
Belgium, Droit de la Guerre, Dossier d’Instruction pour Soldat, à l’attention des officiers instructeurs, JS3, Etat-Major Général, Forces Armées belges, undated, p. 17.