[cogman10]

Not in all libertarian philosophies.

Most that I'm aware of take a dim view on government police forces but don't really take a dim view on enforcement apparatuses against the government. An authoritarian regime needs a strong police force to properly function.

For example, I don't think I've ever seen a Libertarian complain about the inspectors general (except maybe for strict anarchists).

[Fnoord]

Libertarianism and anarcho-capitalism is just pretty much interchangeable, for the reason below.

The keyword here is 'leads'. The libertarian's lack of government leads to a criminal enterprise, ie. a dog eat dog society.

As for small police force, what if police is outsourced to businesses? E.g. PIs, using AI.

If you still have military (and in this case, you do), you can just declare martial law, and use your military.