Related Rule
Israel
Practice Relating to Rule 14. Proportionality in Attack
Section C. Information required for judging proportionality in attack
In 2009, in a report on Israeli operations in Gaza between 27 December 2008 and 18 January 2009 (the “Gaza Operation”, also known as “Operation Cast Lead”), Israel’s Ministry of Foreign Affairs stated that “the core question, in assessing a commander’s decision to attack, will be (a) whether he or she made the determination on the basis of the best information available, given the circumstances, and (b) whether a reasonable commander could have reached a similar conclusion”. 
Israel, Ministry of Foreign Affairs, The Operation in Gaza 27 December 2008–18 January 2009: Factual and Legal Aspects, 29 July 2009, § 125.