You can currently deploy a fleet outside of your base to defend it. While this can be helpful in defending your base, we feel that players should also have the ability to have a fleet to defend inside of the base as well.
We will be implementing a feature that allows players to deploy a single fleet within their base that will attack invading fleets. Players will be able to set an attack radius of the fleet to customize how far away a fleet will travel to engage enemy ships. This gives players the ability to prevent the patrolling fleet from being kited (lured) away from the base.
If a player is present when their base is being attacked by an enemy fleet, the player will be free to control the patrolling ships how they see fit.