Соответствующая норма
Croatia
Practice Relating to Rule 70. Weapons of a Nature to Cause Superfluous Injury or Unnecessary Suffering
Croatia’s LOAC Compendium (1991) considers as a prohibited method of warfare the “use of means and methods of combat resulting in unnecessary suffering”. 
Croatia, Compendium “Law of Armed Conflicts”, Republic of Croatia, Ministry of Defence, 1991, p. 40.
Croatia’s Commanders’ Manual (1992) states: “Weapons causing unnecessary suffering may not be used.” 
Croatia, Basic Rules of the Law of Armed Conflicts – Commanders’ Manual, Republic of Croatia, Ministry of Defence, 1992, § 45.