Here's a quote from a teacher and author John Taylor Gatto, which I found intriguing:
The military which is quite an expensive institution to maintain even in times of peace is always constituted at the fraction of 1% to 1.5% of the entire adult male population. Never heard that before? That was a rule or principle worked out in Prussian Germany several hundred years ago. Now your homework is to find out why that fraction. I'll give you a clue: the prison population of the United States is very close to the military population in the United States and that fraction too was worked out in Prussian Germany about two-hundred years ago.
Now, I'm not sure of the historical validity of this, nor could I find references to any such percentage... Anyone know if this can be verified?
I specifically want to know if the ruling class of Prussian Germany wanted to keep the military "always constituted at the fraction of 1% to 1.5% of the entire adult male population" and why this was significant (Why not 0.5%, or 2%?). Gatto died last year so there is no way to ask him directly for his source.