This report, a major outcome of the ICRC project on occupation and other forms of administration of foreign territory, aims only to document the debates that took place during three meetings of experts. This document is divided in two parts. The first part summarizes the main results of the discussions among experts. The second part consists of a more detailed report by the ICRC of the proceedings of the three meetings. It also includes the agenda of each meeting, the list of the participants, and some expert's written contributions.