k ill give you the answer

certains people where put on holiday for being bad and as a discipline for doing said thing they had there walls cleared and half of thier troops killed off. in some cases they person was found to be innocent and so evony decided to give them back what they had taken, but by the time they gave it back to them the person had already rebiult his walls, thus the persongets his rebiult walls + the wall defences evony gave them, wich 1+1=2x the ammount of wall defences, get it?