Upgrade them as quickly as you can afford to do so.Īs you upgrade your town hall, you will be able to build more walls. As your walls become stronger, it will take enemy forces a longer time to cut through your walls. While forces are busy trying to break through your walls, cannons and towers can either stop them in their tracks or completely obliterate them. As a rule, place walls around your precious resources, like mines and collectors. There are several strategies for wall placement.