Built in the time of the Vortigerns, Sun Gate is normally garrisoned by anywhere from 800-1000 men. In times of war, men have been taken out for use in the field or have been added to defend the fortress.
In order to ensure strict military competence, the commander of Sun Gate is frequently replaced, typically every six months. This also prevents the commander from building a large enough power base in Sun Gate to successfully rebel against the throne. The commander is normally from the royal military and never the member of a noble house.
The current commander of Sun Gate is Lieutenant Photios Doukas.