Looked to me like he was expecting left-wing anarchists to start (or try to start) a civil war, not that he wants one. Big difference.
Maybe the left anarchists wants a civil war here would you be up for that?
"Would you be up for that?" is an invitation. Or, in this case, a threat.
Cook wasn't even talking about a civil war here. He was talking about Aleppo. Foots was the first to bring up the idea of a civil war here.