Соответствующая норма
Switzerland
Practice Relating to Rule 44. Due Regard for the Natural Environment in Military Operations
Section A. General
Switzerland’s Regulation on Legal Bases for Conduct during an Engagement (2005) states: “Care shall be taken in warfare to protect the natural environment against widespread, long-term and severe damage”. 
Switzerland, Bases légales du comportement à l’engagement (BCE), Règlement 51.007/IVf, Swiss Army, issued based on Article 10 of the Ordinance on the Organization of the Federal Department for Defence, Civil Protection and Sports of 7 March 2003, entry into force on 1 July 2005, § 217.