As early as after the arrival of winter, when the water surface began to freeze, Old Ma and others started the infrastructure defense project at Yangshan.
The ice wall at the foot of the mountain was constructed with the help of a group of Water Element Superpower Users.
This kind of ice wall is extremely convenient to build. It only requires mobilizing a large amount of water to form a water wall, which quickly turns into an ice wall in low temperatures.
Next, all that's needed is to keep pouring water on the ice wall, and it will become thicker and thicker.
With the snow covering it over time, these ice walls become extremely solid and thick.
Previously, the places where the military was stationed also included these ice walls.
Now behind these ice walls, Yangshan's elite guards them.
The Three Great Sects or any enemy wanting to invade Yangshan must cross the ice wall, unless they can fly.
