There might not have been a North Korea dictatorship today.
[ There might not have been a North Korea dictatorship today. ]
That would be a plus, the minus may be with more casual military use of nukes we would likely had had a full blown nuke exchange with the commies.
There might not have been a communist Chinese dictatorship today.
But I’ll leave the alternate history to Harry Turtledove ... he does it much better than I ever could.