The Tao Guard is the name of the elite Imperial Navy squadron that directly serves the Supreme General. This unit has been in place since Ultimare's addition to the Galactic Alliance almost 10,000 years ago. Of course, leadership of this unit has changed hands countless times.
The current leader of the Tao Guard is Brigadier General Rahst Blacksun. He gained this position after the Tao Guard's former leader was killed in the Battle of Crimson. Supreme General Drast gave Rahst this position, claiming that he truly believed that Rahst would do great things.