What are they going to put in their armor to make them go? If CW2 happened, the grid would go down as just one side effect, for a number of reasons. No grid, no fuel distribution, panic in the streets, and the fedgov elite will be hunkered down in continuity of govt bunkers trying to figure out what to do. But all their plans and worries won’t get the electricity or the fuel moving again. So any CW2 would also be a fight for survival to find food, mostly fought at the zip code level with rifles. In that realm, the South would be supreme.
The 8th bombed Germany for 3 years and never completely destroyed their electrical grid or their liquid fuel infrastructure. The 8th AF did a hell of a job reducing cities to rubble though.
Here in Texas we have our own grid. :) oh and we make f22s and f35s.