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Croatia
Practice Relating to Rule 7. The Principle of Distinction between Civilian Objects and Military Objectives
Section D. Attacks against places of civilian concentration, including schools
Under Croatia’s Criminal Code (1997), it is a war crime to commit or order the commission of “an attack against … [civilian] settlements”. 
Croatia, Criminal Code, 1997, Article 158(1).
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 times of war, armed conflict or occupation and orders [or commits] an attack against … civilian … settlements”. 
Croatia, Criminal Code, 1997, as amended in June 2006, Article 158(1).