> There are gun nut americans who truly believe gun owners would contribute an effective resistance to a modern invading army because they own an ar15.

It would depend on their patience.

The insurgency in Iraq was eventually suppressed (American COIN manuals were updated). The insurgency (?) in Afghanistan outlasted the patience of the invaders.

So how long do the 'gun nutters' want to keep at it compared to the opposing force?

Further, it's worth asking how effective, on average, is violent disobedience. Generally speaking a movement has about double the odds of success by not using violence:

* https://www.goodreads.com/book/show/44096650-civil-resistanc...