I'm sorry, but this is just too idiotic. In all my games, the AI will always DOW on me early on - even when there is no friggin' reason to do so (either diplomatically or strategically). It usually happens when we're halfway into the Classical era. Just now I'm on another Island Plates map as Japan and have only discovered two civs so far. I've not discovered either of their capitals (despite mutual trade missions and invitations to "share hospitality") - and I have plenty of land around me with just a few city states dotting the landscape. So I'm not even *close* to sharing borders with *anyone* and I haven't done anything to piss off the two players I've discovered (Vicky and Brazil). Vicky was my declared friend, we're on the same continent, had good trade relations, etc. In fact: I just checked her relationship towards me and it is at +19 altogether. Her only complaint is that I'm "headed to bankruptcy" when I have 600 - 800 gold in the bank and am making 25 GPT. But anyway: Out of nowhere she sends a few heavily damaged chariots and a warrior over and DOW on me. And this isn't the first time I've encountered this behavior, either in my games or in let's plays I've watched on YT. In another game, Gorgo discovered me at the end of the classical era, went all friendly in the turn we met (sending/accepting delegations, etc) and the very next turn she declares - with no units other than her exploring galley near my territory. EDIT: And here's how the war went. I wasn't really prepared and only had an archer near my capital. Vicky positioned two warriors and two chariots to attack Kyoto and I didn't even have walls there yet. While I bought/built some more units and moved them towards my capital, she actually attacked the city itself after she healed her units by pillaging three of my tiles. She had the city down to about 50% health and *might* have had a chance of actually taking it (it was pretty close). But then she just stopped attacking the city for some reason, moved her units around needlessly and gave me time to bring reinforcements to the front. Needless to say that this gaffe was more than enough for me to recover, eliminate her entire invasion force (it didn't help her that I am Suzerain of a CS that's "guarding" the naval approach to my capital) and then she was instantly willing to peace out and shower me with gold. S.