It's because a poorly trained farmer with a firearm beats a knight with years of training with a sword with a full set of armor any day of the week. Especially true, if there were 20 farmers with guns versus 5 of the most highly skilled knights with scribes and horses... The level of training for a firearm is significantly less than with those archaic weapons. And it's much more effective and its range is about 20x.
I once met a man who taught knife throwing to the Marines. It was astonishing what he could do. While I watched he took a handful of nails and threw them one by one and stuck them into the wall in a circle.
He showed me how it's done - it's quite simple but takes a lot of practice. But whether any branch of the military still teaches this - or of what use it would be - it's hard to say.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.