Practice Relating to Rule 8. Definition of Military Objectives
Section D. Weapons and weapon systems
Switzerland’s Regulation on Legal Bases for Conduct during an Engagement (2005) explains with respect to the example of a “[m]ortar site, two civilian women are supplying beverages” that, in application of the principles of distinction and proportionality, the “mortar site can be attacked as a military objective: collateral damage”.
With respect to the example of a “[b]attle tank accommodating wounded persons”, the Regulation further explains that, in application of the principle of military necessity, the tank is “not a protected object. Military objective, collateral damage”.