Chapter II
Crimes
Section II
War crimes
Article 15
War crimes against property
1. Anyone who, in the context of an international armed conflict or a non-international armed conflict:
(c) Pillages a town or place, even when taken by assault;
shall be punished with a term of imprisonment of 5 to 15 years.
Pillaging - IAC
Pillaging - NIAC
EDIT.