Règle correspondante
Practice Relating to Rule 7. The Principle of Distinction between Civilian Objects and Military Objectives
Section B. Attacks against military objectives
Ukraine’s IHL Manual (2004) states: “Attacks may be directed only against concrete military objectives. A military objective shall be identified and its destruction shall be possible only if there is clear information for targeting.” 
Ukraine, Manual on the Application of IHL Rules, Ministry of Defence, 11 September 2004, §