Edit: if you abolish the government already before this theoretical invasion there is no voluntary training, there is no organization because you need authority to back those systems up otherwise some Nazis are just going to act cool until you train them and then they’ll take all your shit. Or just come in and kill you while your random decentralized groups are training and organizing.

So now your back @ square one, no government, everything is decentralized (no one group of organizers because those who organize into hierarchy are authoritarian) Nazis took all your weapons, and I ask again, how are you going to defend your country which has now been violently invaded and destroyed by fascists?