>>96402519
None of what you said really seems to be true, unless you think peaking in personnel and budget during war time is a revolutionary idea.
But besides that, we're more selective about who gets to be a soldier today than we were during WW2 or WW1 or Vietnam.

>>96403065
>and the army relied less on technological superiority over the enemy
We've never been reliant on that, we've always succeeded through industrial output and numerical superiority, and also by using allied nations as body shields (Just like the Romans did thousands of years ago).
The few wars where we thought technology was going to give us an edge turned into nightmares that technology never dug us out of.