Соответствующая норма
Practice Relating to Rule 1. The Principle of Distinction between Civilians and Combatants
Section A. The principle of distinction
In 2004, in a report to Parliament on Finland’s human rights policy, Finland stated:
In an armed conflict, the individual is protected not only by human rights law but also by the rules of international humanitarian law. The rules of humanitarian law are essentially based on two basic principles: the applicability of IHL to all armed conflicts irrespective of the reason of the conflict, and the distinction between combatants and civilians. 
Finland, Government report to Parliament on the human rights policy of Finland 2004, Ministry of Foreign Affairs, Helsinki, 2004, p. 82.