Ever watch Doctor Who?
It tends to represent humans as what we are. Kinda bloodthirsty. Even vegans are bloodthirsty deep down, they've just repressed it more effectively than people like Hitler did.
Anyway, I hope they don't have a war. Because if the U.S. joins in, then China against them, where does that leave Russia? They have a war going on between major powers, and two small feuding neighbours, right next to their borders! They won't just sit back and watch, they'll attack all of them.
Although....at least they'd stop flying their stupid nuclear bomber aircraft over my house. Noisy flippin things, setting off entire RAF squadrons.