“Winning wars is much more a matter of attitude and spirit. We have watched the systematic disassembly of our military’s pride, power, and will to win.”
Modern war (as WWII proved) also requires significant industrial infrastructure and economic self sufficiency (food, manufacturing), a united population willing to sacrifice for the common good, and superb leadership. Our manufacturing base has been gutted and exported. Our recently reacquired energy independence is being abandoned. Our nation is divided, not united. Our leadership is egocentric and self serving in most key segments - business, academia, media, government. A huge segment of the population is obese, self indulgent, lazy and dependent on government.
The US of today is very different than on December 7, 1941. We have less capability to fight today than we did in 1941.
I would add the benefit of an isolated geography. Yet will future war be fought on the land, sea, and air? Will the next war be fought in cyberspace? Military strategists oftem make mistakes by planning for yesterday's war.