The Third Fleet of the Star Army of Yamatai is composed of 821 older warships, 100 cargo ships, and around 143,027 personnel (based on starship crew numbers). An additional 220 newer cruisers and battleships were added before the fleet deployed to retake Essia System in YE 41. It is commanded by Hokusai Akiyo.
The Third Fleet is largely made up of older legacy warships with designs dating back to the First Mishhuvurthyar War. Since its reactivation, the fleet has usually been relegated to reserve or support duty, but has been pressed into service more often in recent years.
The Third Fleet's Infantry Regiments fought in the Chaos Hive War of YE 21 on the war-torn planet Ayenee. During the Second Mishhuvurthyar War, the Third Fleet was destroyed in battle with the NMX. At that time it was commanded by Taisho Anzai Saya. It was reactivated again during the Battle of Yamatai in YE 33 and filled with recently-decommissioned ships that were on-route to Virginia Fleet Depot when the battle broke out. A Lorath civil conflict in YE 39 resulted in rebel encroachment upon the territory of Yamatian allies in the Kikyo Sector's northeast, and the Third Fleet was sent in as a preventative measure to keep open hostilities from breaking out between the minor powers. Following the Seventh Fleet's struggle to wrest control of the Separa'Shan homeworld Essia from the Interstellar Kingdom Of Kuvexia, the fleet was bolstered with 220 new ships of the line and ordered in YE 41 to retake the occupied star system alongside the Ninth Fleet.