Соответствующая норма
Practice Relating to Rule 53. Starvation as a Method of Warfare
Section A. General
Iraq’s Law of the Supreme Iraqi Criminal Tribunal (2005) identifies the following as a serious violation of the laws and customs of war applicable in international armed conflicts:
Intentionally using starvation of civilians as a method of warfare by depriving them of material indispensable to their survival, including wilfully impeding relief supplies as provided for under international law. 
Iraq, Law of the Supreme Iraqi Criminal Tribunal, 2005, Article 13(2)(Y).
At the CDDH, Iraq stated that Article 27 of the draft Additional Protocol II (now Article 14) “was of great humanitarian value, and there was certainly a place for it in Protocol II”. 
Iraq, Statement at the CDDH, Official Records, Vol. VII, CDDH/SR.52, 6 June 1977, p. 137, § 88.