American know how expressed in a million ways in the manufacture, transport and application of its industrial might during WW2 was a major factor in winning that war.
We fought a war on three fronts--Europe, Africa/Italy, and the Pacific--simultaneously, and all that had to be supplied.
Just the complexity of building a submarine or a bomber is might numbing.
You can see videos on You Tube on how B-24 Liberators were mass produced.
Also, how bombing raids of hundreds of planes were planned and executed in the days before computers, satellite communications and GPS systems.
Incredible accomplishments.
After the war, this generation built the modern American cities, the Interstate Highway system,and sent men to the moon and back.
Truly, the greatest generation.
M4L
Think about the Army with their manual, split trail 155 MM Howitzers and the "TOT" time on target which allowed multiple guns to fire , using different angles, different times, and hit the targets at the same time, giving no warning to the bad guys...WITHOUT COMPUTERS.
I was a pill roller attached to the arty guys, and I can tell you that the shooters took real pride in doing it right.
With today's computers and GPS systems, it is almost impossible to not get a "TOT" correct.