Imperial Admiral Sayun Ta'acun was one of the nine contemporary imperial admirals that served with the Imperial Navy of the Unity, from his promotion to the rank in 2197 to his death in 2227. Though little is known about him outside of the Unity - and particularly in human space - it is widely accepted that he was the greatest admiral of all time, being a highly skilled tactician, strategist, and fighter of both the navy and the army, having gone his entire life without a single defeat. His ability to hammer out victory after victory with smaller forces than the enemy, along with his incomparable combat record, usually has him compared to as the "Alexander the Great" of the Unity.