Ghost Fleet

The Ghost Fleet was a UNSC fleet that was created by the Admiralty from ships that were officially listed as destroyed/lost in battle against the Galactic Empire.
== History ==
During the Great War, many UNSC ships, including several battleships, were presumed lost or destroyed in battle against the Imperial Navy. However, unbeknownst to the general public and much of the UNSC Navy, many of these ships weren't lost, but were in fact selected to form a secret fleet behind Imperial lines. Once given the order, the fleet of supposedly-destroyed ships would carry out a surprise attack on several key locations within Imperial-controlled space, aiming to deal a critical blow against the invaders.