Ironically, this is part of why the Confederacy failed so hard, but have most of the well known generals. The generals were absolutely trash at strategy. They were totally focused on winning glorious battles, and they sacrificed a significant number of troops getting them. Then, in the long term, they didn't have the ability to keep fighting like that. Their names are remembered for being these supposedly amazing generals (some of this is post-hoc to worship the Confederacy as a symbol for racism) while the union generals were out there winning the war with superior strategy. They were much more likely to retreat when it wasn't strategically advantageous, because they weren't stupid.

strategic goals

Their methods of transport today require even more infrastructure to support.

Are conservatives supposed to lick soldiers' bare feet?

I would say it's significantly worse now. Sure, the soldiers need slightly less food per unit of time, since they aren't wasting as much just walking, but now they have ammo that's consumed at a much faster rate, and they also have vehicles and generators that consume fuel, and so much else.

We've also gotten a lot better with logistics though. We pack things in cargo containers and things, which can be stacked and (off)loaded significantly faster. We also obviously have much faster transportation and production now too.

Logistics is more important than ever, but it's also significantly better managed and easier to track and handle.