AEGIS

AEGIS, or All-Encompassing Globally Integrated Shielding is a planetary barrier system that protected many planets in the Entity-Human War, first put into action on Arcadia, during the Five-Year Wait.

The concept was based around the standard barrier systems of many warships at the time (See: Barrier technology), albeit at a far greater scale and magnitude of strength. Earth's AEGIS, the most powerful Before Exodus, was rated at 675 quindecillion joules (10 to the 48th power).