Related Rule
Italy
Practice Relating to Rule 14. Proportionality in Attack
Section C. Information required for judging proportionality in attack
Upon ratification of the 1977 Additional Protocol I, Italy declared:
In relation to Articles 51 to 58 inclusive, the Italian Government understands that military commanders and others responsible for planning, deciding upon or executing attacks necessarily have to reach decisions on the basis of their assessment of the information from all sources which is available to them at the relevant time. 
Italy, Declarations made upon ratification of the 1977 Additional Protocol I, 27 February 1986, § 5.