Соответствующая норма
Practice Relating to Rule 1. The Principle of Distinction between Civilians and Combatants
Section A. The principle of distinction
In its written statement submitted to the ICJ in the Nuclear Weapons case in 1995, India concluded: “The use of nuclear weapons in an armed conflict is unlawful being contrary to the conventional as well as customary international law because such a use cannot distinguish between the combatants and non-combatants.” 
India, Written statement submitted to the ICJ, Nuclear Weapons case, 20 June 1995, p. 4; see also p. 5.