Our guards are vigilant day and night to ensure we are safe from attack. If you're still not satisfied, however, a small investment can further strengthen our defense. What do you need?
Check the current status of defense power.
Increase your defense power (Lv0 -> Lv1).
Increase your defense power (Lv1 -> Lv2).
Deploy Scouts.
Strengthen the fortress gate.
Hire the Artillery Dwarves.