Practice Relating to Rule 47. Attacks against Persons Hors de Combat
The manual also provides: “Any person recognized, or who should be recognized, as not being able to participate any longer in combat shall not be attacked (for example: in case of surrender, wounds, … shipwreck …).” It specifies that an intention to surrender must be clearly expressed and gives a few examples, such as raising hands, laying down arms and waving a white flag.