Now I understand now why Napoleon failed to conquer the whole world. He had to abandon the game to go downstairs and eat dinner.
This is the same situation I was in last night. So close to finishing, but I ended up quitting. I suggest for there to be a way for players in a game to "pause" it so they can continue later. All players would have to agree on the pause. If players don't log in when the pause ends, they automatically surrender or abandon.