In times of war, they expect mobilization will mean different things.
But I don't think it works that way. You can't suddenly go low tech, the mindset and the skills pipeline can't just be developed within a few months. It doesn't matter how much willpower or money you have.
The way tech and warfare is going, it's a volume game. Both sides have drones, both sides have anti-drone systems. Which side can get enough drones past defenses to cause harm? Which side can keep producing enough drone swarms and sustain enormous casualties and keep fighting?
The new supply line is the one you need to keep drones fueled up, and within line-of-sight and other comms requirement boundaries, since the other guys will be jamming, and the deeper you string from further away, the more difficult the other guys will find it to fight back, or defend.
I focused in on drones/UAV, but I think it applies to all forms of warfare today. Not just UAV, but even infantry.
The US has been at war regularly for a long time now. On one hand, it means a well trained and prepared fighting force. On the other hand, what it takes to win a war against the US has been figured out by all its serious adversaries. Undermine its soft power, alienate it from its network of allies, and attack the political will of the American public. That last bit is how Korea, Afghanistan, and now Iran were a loss for the US. It goes for any country, it's never about the superiority of technology, or arms alone.
The Manhattan project didn't win the war in the pacific theater of the second world war for example, at least not ultimately. ultimately, the fact that the japanese leadership accepted that there would be more nukes, and that american leadership, and public alike are more than willing to keep killing hundreds of thousands of civilians did. All serious enemies of the US now know that they must get the american public on their side, or get the american public to simply not care about fighting them at such high costs.
I can't imagine a good way to solve that ultimate weakness...other than to reduce costs. Instead a million dollar UAV, use a $99 kimikaze UAV, and send 10k of them at a time, constant waves of attacks that are impossible to defend. demoralize and destabilize the enemy very quickly at low cost before opinions waver.
I only said all that purely for intellectual curiosity though. War is a filthy thing. There is no realistic prospect of homeland warfare for the US. I would prefer to not be prepared for war at all. A constant state of readiness for war is inviting war. It needs to be written into law that peacetime defense spending cannot exceed more than a certain portion of the GDP to national debt ratio, and never above like 1% of revenue.