The Imperial Guard is a legion of superpowered champions who protect and defend the Shi'ar galactic empire.
Its members are drawn both from the Shi'ar and other alien races governed by the Shi'ar. The majority of the Imperial Guard's members are known as Borderers. They assist the governors of conquered planets in enforcing the Shi'ar imperial law.
The Imperial Guardsmen however belong to the elite corps that protects the ruler of the empire, known as the Majestor or Majestrix, and executes his or her orders.