Let's face it, who has the most to gain from a divided Europe? And a divided USA?

Iran, sure.... but.
China, notso - & their biggest markets outside China are?
Why would Russia meddle? Why wouldn't they?
Russia - well now who has the form? Who thinks nothing of killing ex-pat Russians in the UK? & then blatantly tries again, with a few "undecided" deaths along the way. Who just marches to Georgia, poisons the elected leader and while at it, annex a whole peninsular. And who hacked Hilary's e-mail and was brash enough to admit it?