There seem to be some very harsh responses to the OP. That he doesn’t understand economics, or the necessity of maintaining armies, or that he is too “young” (code for naive?) to remember the start of the Afghan campaign.
But, he never actually stated that money IS wealth. He only seems to assume that it is a convenient proxy for it. In many circumstances that is entirely appropriate.
He never stated that all military spending is wasteful. He only expressed a bit of sadness that it IS necessary.
Even stranger than the general attitude attacking the things he didn’t say are some of the things said to demonstrate their error. Taxing Iraq to pay for getting rid of Saddaam? :dubious: Who do you think was propping him up? Mostly to neutralize Iran. Which, collapsed into theocratic fascism as a reaction to the West’s designated puppet. Would the Taliban make Afghanistan very unpleasant for many people if the US wasn’t there? Sure. But, that didn’t worry the US when it basically created the Taliban to fight another enemy.
In my opinion, the OP seems to be lamenting the fact that if the resources of the world were used efficiently to benefit as many people as possible as much as possible, there may be no poverty. We wouldn’t all be living like kings, but real, starving to death, no clean drinking water, kids dying of easily and inexpensively treatable illnesses, type of poverty may not exist.
Bombs and bullets are far more expensive than bread. But, the wealthiest nations spend on them to protect what they have, or take even more. Even within countries, those tapped into the industrial-military complex leverage their power at the expense of others. Occupations of Iraq, Afghanistan, etc. may not much improve the lives of the average Afghan or Iraqi, but they make a lot of money for the construction, oil and mercenary companies involved. More to the point, they make a lot of money for the politicos who actually call the shots. This money doesn’t come from thin air, though. U.S. taxpayers have to foot the bill. Even those who can barely pay their bills.
So, the world at large benefits little from the vast majority of military spending. Poor nations could really benefit from the stability it provides, but can barely take care of the essentials, so can’t afford to obtain it. Within the large nations that “benefit” from it, only those connected to it really benefit while the taxed populace has to pay for the funneling of wealth to the connected.
Military spending wouldn’t be necessary for any country, if no other country indulged in it. This would make the world a better place by itself, even if you didn’t spend the saved money on relieving poverty for the world’s poorest. But, this is where I think the pile-on is uncalled for. The OP doesn’t propose a way to do it or even say that it is possible to do it. So calling him naive or ignorant is misunderstanding his point.
If I might paraphrase (unless I’M misunderstanding the OP): “The world would be so much better if we spent less on killing each other and more on helping each other.”