I've seen a lot of suggestions on bribing other nations to fight for you, but whenever I try to ask what they want, they say that 'there is no way to make this work'. In fact, I don't think I've ever seen a situation when it could have worked. I've tried dragging in 1000 gold and some strat resources but they keep declining. Do you have to be on really really good terms with the civ? Any suggestions?