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- "Watching the skies."
- ―An AT-AA pilot
The All Terrain Anti Aircraft (AT-AA) was a quick-moving, quadrupedal, mobile anti-aircraft walker used by the Galactic Empire.
Characteristics[]

Multiple views of an AT-AA
The AT-AA had four stubby legs and lizard-like locomotion, along with a low profile not seen in other Imperial walkers. On most models, the only weapon was a turreted flak pod, capable of firing several types of ordnance.[4] Other versions could be equipped with one or three rocket-launching tubes.[2] Initially the AT-AA had an inability to fire at ground targets. This was partially rectified with the addition of gun ports to allow the crew to fend off infantry attacks.[2]
Some variation had flak pods replaced with concussion missile launchers.[2] The AT-AA also carried electronic countermeasure systems that could scramble missile guidance systems, thus lowering the risk of missile strikes.[4]
History[]
- "Move! Move!"
- ―Unnamed AT-AA pilot

AT-AAs firing
Its preliminary designs were developed as far back as the Clone Wars, and the design began production early on in the time of the New Order.[4] The walker saw action during the Galactic Civil War, where it was used against aircraft, but was useless against any ground vehicles.[2] Although the troopers aboard could fix blaster rifle mounts on the vehicle, the AT-AA still relied heavily on escorting infantry vehicles,[4] including AT-STs.[3]
During the Battle of Kalaan, AT-AA batteries protected the armored columns from airborne enemies, bringing down scores of Alliance T-47 airspeeders.[6]
AT-AAs were used even in the time of the New Republic, where they defended the galactic capital from the New Republic Defense Force.[7]
Behind the scenes[]
The AT-AA is the only Imperial siege weapon originating from the Expanded Universe to appear in all three of the major Star Wars RTS games.[8][6][5]
Appearances[]

An AT-AA with a missile tube.
- Star Wars: Galactic Battlegrounds
- Star Wars: Empire at War
- Star Wars: Empire at War: Forces of Corruption
- Star Wars: Force Commander (First appearance)
Sources[]
- Star Wars: Force Commander: Prima's Official Strategy Guide
"Vehicles of Episode II" — Star Wars Insider 64
- Star Wars: Empire at War: Prima Official Game Guide
- Star Wars: Empire at War: Forces of Corruption Expansion: Prima Official Game Guide
- The Complete Star Wars Encyclopedia
- Rebellion Era Campaign Guide
All Terrain Anti Aircraft (AT-AA walker) in the Databank (content now obsolete; backup link)
- Star Wars: Imperial Handbook: A Commander's Guide
- Stay on Target
Notes and references[]
- ↑ 1.0 1.1 Star Wars: Empire at War: Prima Official Game Guide
- ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 2.12 2.13 2.14 2.15 2.16 Rebellion Era Campaign Guide
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 Stay on Target
- ↑ 4.0 4.1 4.2 4.3 4.4 4.5 4.6
All Terrain Anti Aircraft (AT-AA walker) in the Databank (content now obsolete; backup link)
- ↑ 5.0 5.1 5.2 Star Wars: Empire at War
- ↑ 6.0 6.1 Star Wars: Force Commander
- ↑ Star Wars: Galactic Battlegrounds: Clone Campaigns
- ↑ Star Wars: Galactic Battlegrounds