Related Rule
Croatia
Practice Relating to Rule 33. Personnel and Objects Involved in a Peacekeeping Mission
Croatia’s Criminal Code (1997), as amended to 2006, states that a war crime is committed by:
Whoever violates the rules of international law in time of war, armed conflict or occupation and orders [or commits] … an attack against persons, equipment, materials, units or vehicles involved in humanitarian aid or a peace mission pursuant to the Charter of the United Nations. 
Croatia, Criminal Code, 1997, as amended in June 2006, Article 158(1).