The Deep Core Reserve Fleet, later known as the Deep Core Fleet or simply Zaarin's Fleet, was a large fleet of Star Destroyers and numerous other vessels of the Imperial Navy put in reserve by Darth Krayt and Naval Command in 131 ABY, shortly after the Sith overthrew Emperor Roan Fel. As reserve ships, they patrolled the Deep Core, which was largely not threatened by the Empire-in-exile. However, as it's commander, Grand Admiral Sarek Zaarin, grew disillusioned with the Sith rulers, he led the fleet in a defection to the Empire-in-exile. Most of the fleet joined him in the defection, and they controlled the Deep Core for Fel's faction. This was alarming and a major blow for Krayt's Empire, which launched several offensives into the Deep Core, though they did not succeed until 137 ABY. The