Соответствующая норма
Croatia
Practice Relating to Rule 118. Provision of Basic Necessities to Persons Deprived of Their Liberty
Croatia’s Instructions on Basic Rules of IHL (1993) states that captured civilians and combatants are entitled to receive relief shipments. 
Croatia, Instructions “Basic Rules of International Humanitarian Law Applicable in Armed Conflicts”, Republic of Croatia, Ministry of Defence, 1993, Instruction No. 4.