What is it called when an occupying power exercises complete authority over an occupied territory?

The term for when an occupying power exercises complete authority over an occupied territory is "Military Government." This concept refers to the administrative and governmental framework established by a military force in a region that has been taken over or is under military control.

Military Government denotes not just the presence of military personnel but involves the enforcement of laws, maintenance of order, and the overseeing of daily activities as if the military were the governing body. It typically arises in situations where civil governance is disrupted, allowing military structures to fill the void and exert control over the local population, resources, and institutions.

Understanding Military Government is essential, especially in contexts of conflict or post-conflict reconstruction, as it defines the responsibilities and rights of the occupying power in managing the territory and its inhabitants under international law.