Italy
Practice Relating to Rule 47. Attacks against Persons Hors de Combat
Section B. Specific categories of persons hors de combat
Italy’s IHL Manual (1991) states that it is prohibited to use violence “to kill or injure an enemy … when he, having laid down arms or having no longer means of defence, has surrendered at discretion”. It also forbids “firing at the shipwrecked”.
Italy’s LOAC Elementary Rules Manual (1991) states: “A combatant who is recognized (or should be recognized) as being out of combat may not be attacked (surrendering, wounded, shipwrecked in water …). The intent to surrender can be shown with a white flag.”
Furthermore, one of the rules to be observed when confronted with enemy combatants who surrender is “to spare them”.
Italy’s Combatant’s Manual (1998) states: “
IT IS NOT PERMITTED to attack enemy soldiers demonstrating the intention to surrender.”

(emphasis in original)
Italy’s Law of War Decree (1938), as amended in 1992, provides that it is prohibited to use violence “to kill or injure an enemy … when he, having laid down arms and having no longer means of defence, has surrendered at discretion”. It also forbids “firing at the shipwrecked”.