The PMC industry performs a service that cannot be provided by any other source

A PMC (private military company) is a private company that provides security services in exchange for money. Technically speaking, armies are able to preform the same service. So the PMC industry DOES preform a service that CAN be provided by another source. Also mercenaries, pirates, and rent-a-cop companies do the same thing.

I hope this helps! :)

A private military company (PMC) is a private company providing armed combat or security services for financial gain. PMCs refer to their operationally deployed personnel as "security contractors" or "private military contractors".

Explanation:

PMCs specialize in providing combat and protection forces. Their work ranges from running small-scale training missions to providing combat units composed of up to several hundred highly trained soldiers equipped with powerful weapons platforms, including tanks and attack helicopters.

no i don't think so.