Thought I'd move this comment higher in the thread so that you'll see it. Try re-reading 11.3 with the phrase "belligerent occupation" replaced by "martial law" (as conducted by our own military).
And this is established in 11.1.1:
Martial Law. The practice of conducting military occupation is very old, and the law of military occupation has long been part of the law of war. Military occupation is also called belligerent occupation. The conduct of military occupation has also been characterized as an exercise of “military government” or “martial law
Thought I'd move this comment higher in the thread so that you'll see it. Try re-reading 11.3 with the phrase "belligerent occupation" replaced by "martial law" (as conducted by our own military).
And this is established in 11.1.1: