In which area does a division or brigade primarily defend?

A division or brigade primarily defends in a “zone.” In military terms, a zone refers to a designated area of operations that is assigned to a unit for defensive purposes. This allows the unit to organize its resources effectively and coordinate its defensive plans across the entire area. By defending a zone, the division or brigade can manage multiple tasks and operations that correspond to the broader objectives of the command while also enabling clear logistical and command structures.

In contrast, the other terms represent different concepts within military operations. A sector is typically a smaller, more specific area within a zone, focusing on operations that may involve multiple units. An area generally refers to a broader geographical space that can encompass several zones or sectors. A strong point refers to a fortified position that is primarily used to enhance defense capabilities but does not encompass the broader and more comprehensive responsibilities of a zone.