if america becomes anarchy how would we defend ourselves from other countries?
Let’s do a little thought experiment.
If you were a farmer and wanted to take over some land by force are you going to try and take over land that is already set up to make money or are you going to take over some undeveloped land?
Of course you are going to take over the already developed farm land because you can stop making money right away.
Now if you are another country are you going to try and take over a society that has a government that is already taxing and stealing from their citizens or the state-less society, where mostly likely everyone is armed and even if you do take them over there is no structure in place. So then you’d have to waste billions into trying to put a government in place with a society who will just continue to resist?
States invade other states for profit. Invading a state-less society isn’t very profitable.
But it is possible that another state might still think it is worth while to invade a state-less society even though they pose no danger.
In a free society there still can be a “military” that would be self defense. Private militarizes would be just like insurance companies. Or it could be another service that insurance companies provide.