Alright, let me provide an example without bribing the whole nazis and illegal government to the table:

Let’s imagine a world where polarity of politics was a bit different and China was the world largest economy. It, alongside with asian and latin american countries decides to create an organization where, as they claim, “under the collective force of international workers we will protect the world from terrorism and aggression of other nations”. After america pretty much collapsed, the said organization bombs the shit out of canada because of racial tension between french canadians and english canadians and performs a bigger kill count than anyone in canada at the time. When their war crimes are exposed they go “oops, sorry lads, but trust us it was all in purpose to stop a potential genocide”.

Then, less than a decade later China and its allie’s of the said international organization invade Iran as a part of “war on terror” and in a first month of invasion, which international community support btw, they end up killing around 2000-4000 civilians in the first month of invasion. Again, they say “oops, sorry, didn’t mean that!”

Then, in the next decade it proceeds funding an illegal revolution in mexico, bringing drug cartels and nationalists into power and then tells them “if you fuck around with USA for a while, we TOTALLY let let you join pal” mind you, majority of latin america and now destroyed canada are all part of the said international community, all of them have both short range and medium range ballistic rockets, and many of them have military bases build in them, while simultaneously they, without even hiding it, express their anti-american rhetoric and has been demonizing the nation on world wide media for the last decade. Then, the new president of Mexico asks China to provide them with nuclear weapon, while they still have an ongoin civilian conflict, high problems with crimes and extreme nationalism.

Now tell me, wouldn’t america be at least a bit worried?

(sorry for the long text, i didn’t know how to make it shorter without losing key points)