You know sometimes you are playing europe or historical you are doing great but the AI decide dwuh huh huh wouldn't it be great if I attacked you just when you are burnt out of troops? You can invade them easy peasy but it's annoying in that time they take land and destroy cities until you send troops then more AI attack? In large numbers AI attacking is really really frustrating ask your ally who is not at war with you to deploy the weakest basic troops at your borderlands and do the same for your ally, the bots won't attack your allies troops on your land just attack the province until you can b*tch smack them with your artillery, it's easy and it works!
nigeo19?