Ah yes this old chestnut

Come back to me after you serve in combat. The dod doesn’t protect anything but investors’ returns.

I’ll have two time Medal of Honor winner explain it to you:

https://archive.org/details/WarIsARacket

I don't need a 13 page pamphlet to convince me that people are motivated by making money. But that's orthogonal to wanting a powerful military under whose umbrella you are pontificating.