Shields provide additional defensive capabilities for your empire. You must assign the amount of power that you to allocate to your shields, which will determine the level of shield effectiveness. You have the option of powering Military Shields, Missile Shields, and/or Probe Shields.

Probe Shields
Probes communicate with each other using an encrypted frequency transmission. By flooding space with random transmission blasts we can disorient the enemies probes and cause the failure rate to increase 20%.
Maximum Effectiveness: 20%

Military Shields
By rebounding the enemies offensive battle carriers your kingdom's defenses can decrease the offense value of the enemies forces.
Maximum Effectiveness: 10%

Missile Shields
These shields are specially designed to detonate missiles upon contact, before they make it to your kingdom. At full power, these shields can stop up to 100% of all missiles launched at it. Great if a whole sector is attacking you.
Maximum Effectiveness: 100%

Defensive State
Defensive State will provide you will full shielding upto their maximums, regardless of power reserves or shield settings.