1.Israel stupidly keeps attacking everyone and US weapons supply runs dry. They get destroyed by their victims retaliation.
2.China actually decides to do something.
3.Russia does that Simpsons bit where robot Lenin breaks out of his grave. But says "Haha joke!" And continues being shitty and capitalist.
4.Ukraine does something stupid and Nazi-coded to get attention from US senpai.
5.The US accidentally nukes itself.
We're not fully sure of the number, but somewhere between 3 and 20 modern day nukes will be enough to start a global winter where everyone dies anyway. If any kind of nuclear war starts out, even a teeny tiny one, most-to-all of humanity is fucked.
I’m not saying we won’t get our hair mussed
Somebody more knowledgeable correct me, but wasn't the whole nuclear winter thing debunked already?