Empiricism is not on your side. The richest country in the world spends more than its fair share on 'a huge armada of amazing battle ships', actually, as much as everyone else on the planet put together, and also actively seeks out remote spots of the planet to blow stuff up in.
Nah, neither, I was using raw GDP. Those countries don't have politico-economic systems which funnel large chunks of their populations into either incarceration or the military. Forbes list also seems appropriate for the discussion given the 'very rich' theme going on.
Care to dig up those rates/expenditures per capita?
Rinse, repeat, very rich.