You can train defensive weapons through the Defense Factory by following these steps:

- Click on the Defense factory building in your base.
- Click on "Build."
- Choose the desired type of defensive weapon, specify the quantity needed, and click on "Train."

Upgrade the building to unlock higher levels and different types of defensive weapons.

Note: You can manufacture a maximum number of defensive weapons; this limit increases as you upgrade your defensive wall.

Defensive weapons remain inside the base and play a crucial role in defending it in case of an attack.