"Warriors for hire, the swift moving Hippus has fought for, and against, every nation at one time or another. They are equally happy partnered with orcs as they are with men, as long as they get paid."
Is it easier to pay the Hippus into a war of yours than other civs?
It would be nice if Declare War On is always possible to trade with them no matter your standings or their standings to the target, as long as you can pay for it.