I would bet a large percentage of my savings that a country other than the US would've created such a military force within the next 20 years if the US hadn't (

I would bet a large percentage of my savings that a country other than the US would've created such a military force within the next 20 years if the US hadn't (probably the next 10). Creating a military presence in a new domain doesn't necessarily imply any sort of aggression. It can be a buffer, an incentive not to attack America, etc. The world isn't currently in a state of peace and harmony, or anywhere near it. If it were, then I'd agree that this would be a disgusting and peace-threatening precedent set by America. But this is not the world we live in, even though I hope it will be the world at some point within the next few millennia. To be clear, I'm not supporting or defending any other actions taken by the US since WWII. I empathize with the citizens of countries that our government has abused, exploited, and killed. I just see nothing wrong with creating a space force. If we have an air force, why shouldn't we have an above-air force? If your argument were "we shouldn't have an air force or an above-air force", then I'd be much more inclined to agree (though with caveats, given all the game theory coordination stuff I alluded to). If we're going to have a military, why would you half-ass it? I think you should either have nothing but a token military like Switzerland, or one that tries to be capable of engaging in combat in every domain. Having a "just mostly pretty sort of capable" military doesn't make any sense. Shit or get off the pot. Again, I'd love it if everyone in the world only had a token military, or no military. Actual peace-threatening, provocative actions are things like cancelling the Iran deal, assassinating Soleimani, invading Iraq, Bay of Pigs; the list goes on for pages. I don't see the parallel between those and this. Now, if the government had announced our space force is going to colonize half of Mars in the name of the US, then I'd fully agree with you. That's a thing that could happen, and I certainly don't want it to. Trying to establish a true, fair one world government might be the only way to create lasting peace, but, again, sadly I don't think that'll be possible in our world for a very long time.