> The US could spend half of what it currently spends on the military and still be twice as powerful in terms of military force as the rest of the world combined. I'd argue investing a chunk of that money in domestic infrastructure, healthcare, poverty and a chunk of it in diplomacy would give you a more powerful US in two decades than if you would raise military spending even more.
I broadly agree that we should spend less on our military, but this is untrue on a couple major counts.
Firstly, the US doesn't outspend the rest of the world combined. This is a talking point that started going viral some time in the early 2010's (I think it was on some TV show?), but the statistic is misleading because it compares nominal dollar amounts rather than PPP adjusted dollars. When you do that adjustment, the next 2 countries combined outspend the US[1]. This is important because (1) the personnel in each country are paid in the wages commensurate the cost-of-living of the home country (e.g. the wage for a Chinese soldier is 1/10 the wage of an American soldier in nominal dollars), and (2) military goods aren't global commodities; the US can't procure its equipment from China like it does every other good, it has to procure them either domestically or from allies which are typically high purchasing power countries. A single nominal US dollar goes a lot further in China's or India's military than it does in the US's, and that needs to be accounted for in these comparisons. PPP adjustment isn't perfect in this context, but it's much less wrong and vulnerable to low hanging fruit criticism than simply using nominal amounts.
Secondly, I think the percentage of the Federal budget that's spent on the military is overstated. It's not even close to being the biggest line item; it accounts for 15% of the Federal budget[2], and much much lower than that (about 8%) when you look at military spending as a percentage of total government expenditure across all levels of government. The lion's share of spending today is already healthcare and welfare.
Thirdly, I think that the actual cost of healthcare et al are understated; in FY2019 the US government spent $676 billion on Defense, while the cost of healthcare every year by most estimates amounts to $3 trillion per year. Even if you were to divert the entire military budget to healthcare, you'd have to find $2T somewhere.
While I agree that we should spend less on fighting and war (because I dislike fighting and war), military spending is a convenient scapegoat for other problems, the solutions for which are not so simple.
[1] https://www.reddit.com/r/dataisbeautiful/comments/gijt81/oc_...
[2] https://en.wikipedia.org/wiki/United_States_federal_budget#/...
