And what is the difference between a 'state' and a 'corporation'?

What happens when a corporation has more power, influence, control, and private security than a country?

This reminds me of discussing things with libertarians. "It's bad when a government does it, but when a private corporation does it, it's actually okay guys, it's the free market and all."

I still don't know of any legal means for a corporation to own fighter jets or carrier ships so no matter how powerful they will still be weaker than a government.