- "I am Admiral Ar'alani of the Chiss Defense Fleet."
- ―Admiral Ar'alani
The Chiss Defense Fleet, also known as the Expansionary Defense Fleet, was the armed forces of the Chiss Ascendancy. The fleet operated in the galaxy's Unknown Regions, and included Admiral Ar'alani, a Chiss female officer, as well as Commander Mitth'raw'nuruodo before he joined the Galactic Empire. The human Eli Vanto, a commander in the Imperial Military and a personal friend of Thrawn, would also join after Thrawn sent him as an Imperial liaison to the Chiss Ascendancy. The fleet also had a specialized military uniform. 
- "I am Commander Mitth'raw'nuruodo, officer of the Expansionary Defense Fleet, servant of the Chiss Ascendancy."
- ―Mitth'raw'nuruodo, introducing himself to Anakin Skywalker
The Chiss Defense Fleet, also known as the Expansionary Defense Fleet, was the armed forces of the Chiss Ascendancy that was active by the time of the Clone Wars. During the war, Chiss Defense Fleet officer Commander Mitth'raw'nuruodo was near Batuu on a mission when he encountered Jedi General Anakin Skywalker of the Galactic Republic. The Chiss Defense Fleet remained active during the early rebellion against the Galactic Empire, and after the Batonn insurgency, Admiral Ar'alani rendezvoused with Imperial Commander Eli Vanto, who was dispatched by Mitth'raw'nuruodo. During the Imperial–Grysk conflict, Chiss Defense Fleet forces monitored the battle against Grysk forces.
The Chiss Defense Fleet was the armed forces of the Chiss Ascendancy, which in turn was ruled by the Aristocra. There were multiple military ranks used in the Chiss Defense Fleet, including the ranks of admiral and commander. Part of the role of the Chiss Defense Fleet was defending Chiss colonies, as well as monitor battles between other factions and governments.
Officers of the Chiss Defense Fleet were outfitted with a type of Chiss uniform which was able to absorb energy, protecting the user from blaster fire. As a commander, Mitth'raw'nuruodo utilized a black uniform with a burgundy patch on one shoulder and silver bars on the collar. Admiral Ar'alani also wore a blue Chiss uniform, with two silver bars on the collar.
Starships of the Chiss Defense FleetEdit
Behind the scenesEdit
The Chiss Defense Fleet first appeared in Star Wars canon in the 2017 novel Thrawn, written by Timothy Zahn. The Defense Fleet originated in the 1998 Star Wars Legends novel Vision of the Future, and first appeared in the 2004 novel Survivor's Quest, both written by Zahn.
- Thrawn (First appearance)
- Thrawn audiobook
- Thrawn, Part VI (First pictured)
- Thrawn: Alliances (First identified as Expansionary Defense Fleet)
- Thrawn: Alliances audiobook
- Thrawn: Treason
- Thrawn: Treason audiobook