Sorry for the joke, I actually like your idea. But the military indeed sorta prevent having wars by doing military exercises to expensively signal strength and capabilities. That’s how we have prevented WW III so far.
So the crux is doing this without such an economic waste.
Oh I was hoping you would propose this: https://www.smbc-comics.com/comic/the-end-of-history
Sorry for the joke, I actually like your idea. But the military indeed sorta prevent having wars by doing military exercises to expensively signal strength and capabilities. That’s how we have prevented WW III so far. So the crux is doing this without such an economic waste.