Article 1 Code of Crimes against International Law (CCAIL)
Part 2 Crimes against International Law
Chapter 2 War crimes
Section 11 War crimes consisting in the use of prohibited methods of warfare
(1) Whoever in connection with an international armed conflict or with an armed conflict not of an international character,
7. treacherously kills or wounds a member of the hostile armed forces or a combatant of the adverse party,
shall be punished with imprisonment for not less than three years. In less serious cases under number 2 the punishment shall be imprisonment for not less than one year.
Killing or wounding treacherously a combatant adversary - NIAC
Killing or wounding treacherously individuals belonging to the hostile nation or army - IAC
EDIT.