Соответствующая норма
Practice Relating to Rule 43. Application of General Principles on the Conduct of Hostilities to the Natural Environment
In 1994, Romania’s Ministry of Defence pointed out:
The education and instruction process was intended especially for the study and implementation of the types of military decisions that would provide a balance between the desired military advantage and its potentially negative impact on the environment. 
UN Secretary-General, Report on the United Nations Decade of International Law, UN Doc. A/49/323, 19 August 1994, § 32.