If the bankruptcy of cities and counties continues, the police forces they have fielded will be decimated. San Bernardino CA is an example.
The militia concept may be the only way for law-abiding citizens to provide for common defense. How that all gets put together and its formality may be very ad hoc or reasonably planned. It is possible that existing police agencies could collaborate in this. More likely, they and politicians will oppose it, for the threat they figure it presents to their authority.
During the Rodney King riots in Los Angeles CA, Korean shop owners armed and collaborated to the defend their properties, and those shops survived without being looted or burned. Adjacent, undefended businesses owned by others, including blacks, were looted if not burned. Los Angeles PD was nowhere to be found.
Loyalty to petrified opinions never yet broke a chain or freed a human soul in this world — and never will.
— Mark Twain