Article 434
(1) Whoever, in violation of rules of international law in time of war or armed conflict, kills or wounds an enemy who has laid down his weapons or has unconditionally surrendered or was left without any means of defence shall be punished by a prison sentence for a term from one to fifteen years.
(2) Where the murder set out in paragraph 1 of this Article was committed in an insidious manner or out of base motives, the perpetrator shall be punished by a prison sentence for a minimum term of ten years.
(3) Where the murder set out in paragraph 1 of this Article was committed in a cruel manner or out of greed or if several persons were murdered, the perpetrator shall be punished by a prison sentence for a minimum term of ten years or a longterm prison sentence.
(4) The penalty set out in paragraph 3 of this Article shall also be imposed onwhomever, in violation of rules of international law in time of war or armed conflict, orders that there shall be no enemy survivors or who conduct hostilities on this basis.
2. For the purpose of this Statute, ‘war crimes’ means:
(b) Other serious violations of the laws and customs applicable in international armed conflict, within the established framework of international law, namely, any of the following acts:
(xi) Killing or wounding treacherously individuals belonging to the hostile nation or army;