You were cornered diplomatically by a superior intellect. Sure, if this was a real-time strategy game, you could have declared war by actually attacking with your units. But it is not. It was her turn, and she had the initiative. Civ5 will never be an RTS. This thread has gone from making me laugh to making me a bit sad. Is this why AIs in many games are being "dumbed down"? Is the human ego unable to accept being defeated by a video game? Honestly, had this same thing happened to me, I would have come here to post about how cool it was that the computer showed a bit of ingenuity, even bordering on sneaky!