This is going to be a tough one to fix, as it will probably require at least some major refactoring and revision of almost all of the core mechanics, but I've found that in many cases it is extremely difficult for the player to quit AI War. This seems to happen in almost any situation, even when it has gotten very late and it's time to go to bed, which can make it very difficult to get up for work the next day. I don't have a savegame on hand at the moment, but it's easy to reproduce - just run the game and start playing.