Well if you are attacking, and you can attack two of the provence you want and one right next to it try this. Split your forces as equal as you can. Then attack both provinces. The Bzy may split there army to defend both. Now fight what ever provence does not have there 8 star general. With out there leader you should be able to beat them. As long as you can put some one with some command in charge. Now in the other provence, just start the battle and withdraw.