Practice Relating to Rule 15. The Principle of Precautions in Attack
Mexico’s IHL Guidelines (2009) states: “The parties to a conflict must cause the least possible damage to the civilian population and the cities, towns and villages in which they live.”
In a section entitled “Basic rules of conduct in armed conflict”, the Guidelines also states:
The following rules must be observed by combatants when engaged in military operations:
b. Attack objectives as required to fulfil your mission, causing the least possible harm to civilians and the least possible damage to civilian objects.