I'm not talking about anywhere near a any settlement, I'm talking about places of only strategic importance, where only soldiers have any businesses being. The equivalent of a mine field. You can't take your dog for a walk on a mine field, and military bases already import all their food, but nobody particularly care about that.
Ah I see what your saying and its my fault for not giving enough elaboration on Deep Noble Animal Utilization, that is fixed... we now have a section on Deep Noble Technology!
The analogy of a military base having no animal life would be more comparable from a Deep Noble Perspective to a military base today being setup with no computers, radio, combustion engines or any form of electronics.
I think the minefield analogy however is still completely apt, but such strategies would have to be useful under extremely LONG timescales and they would still need to be significant distance both from all noble industries, trade routes and water tables as well as having some form of decontamination period/washing system for exiting the territory.
Deep Nobles have no natural causes of death, as such those that dictate military action have to think centuries ahead of time and the inconveniences incurred from deploying Royal blood are for the most part weighed against any serious utilization of it outside of carefully stored containers.