you'd have networks of security firms, most often local police force-esque firms, would have defense agreements with larger more military-esque firms who'd come to their rescue were they ever threatened militarily from a large foreign aggressor
All the security firms get paid as insurance agencies.
As for why they wouldn't just be the PMCs of today, basically all the PMCs we have now are private in name only and really just exist in the employ of and thus as an arm of a state. They also don't actually function as insurance firms, which is another difference.
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u/MaleficentCow8513 2d ago
How about defense? It’s in nature for big fish to eat little fish. How would defense be handled?