11.3, 11.4 may refer to the law of war manual rather than a date.
XI – Military Occupation
Chapter Contents
11.1 Introduction
11.2 When Military Occupation Law Applies
11.3 End of Occupation and Duration of GC Obligations
11.4 Legal Position of the Occupying Power
11.5 Duty of the Occupying Power to Ensure Public Order and Safety
11.6 Protection of the Population of an Occupied Territory
11.3, 11.4 may refer to the law of war manual rather than a date.
https://www.documentcloud.org/documents/2997317-DoD-Law-of-War-Manual-June-2015-Updated-May-2016
it's to do with taking back the country from a hostile coup.