It just seems like pure brainworms to me, why did it need to happen? Why did China support Pol Pot at all at one point?
I promise I'm not trying to do a western leftist "um ackshly China is imperialist" thing, I want to see your point of view on this.
I don't really know if Vietnam would have posed a long-term threat to China, although I just found a really interesting post at /r/AskHistorians about this topic.
https://old.reddit.com/r/AskHistorians/comments/g0lwmc/china_smashed_through_northern_vietnam_during_the/
Thanks for the link, very detailed info there.
It just bums me out reading about communists killing each other, this should have been avoided.