CROATIA CRIMINAL CODE
SPECIAL PART
CHAPTER THIRTEEN (xiii) - CRIMINAL OFFENSES AGAINST VALUES PROTECTED BY INTERNATIONAL LAW
Article 165
Whoever, in violation of the rules of international law, brutally treats the wounded, sick or prisoners of war or restricts or prevents the realization of the rights granted to them under these rules shall be punished by imprisonment for six months to five years.
Intentionally starving as method of warfare - IAC
Unique provision - NIAC
National penalties - war crimes
EDIT.