[dragonwriter]

> Though I'd argue at this point that the only way the United States would face a war that could be fought conventionally internally, it would be by a foe that's using the resource of the United States Army, as I don't believe there'd be another other viable option

That's true because of the income tax derived funds lavished on the US Army (and other branches.)

Were that to stop—which abandoning the income tax without a similar scale replacement would likely require—other options would rapidly open up.