I don't think you need total control, just enough so that you're the go-to party for diplomatic and military negotiations in the geopolitical region.
The conflict isn't because of the lack of monopoly. The conflict and lack of monopoly are because whoever as the closest thing to a monopoly is doing such a bad job.
In this case it's like cable TV. Only not a monopoly if you look at the whole country...
Personally I would prefer no violence from either side…
The state monopoly on violence (+ a judicial system) tends to result in a low amount of violence... at least intra-state. Wars are another matter. Notably, there is no monopoly on violence between states. States are allowed and somewhat expected to be violent psychopaths externally.
Internally as well, given what happens to any push back against law enforcement where I live- in the US, at least, if you try to defend yourself against state violence you'll be summarily executed in the street.
Personally, I would prefer 10B USD liquid and tax-free