AATs at the Battle of Naboo
The Armored Assault Tank
appears in Star Wars: The Phantom Menace
as the primary armored combat vehicle of the Trade Federation
. It continued to see service along side the many other vehicles of the CIS
during the clone wars.
The AAT is equipped with a repulsorlift, a primary turreted laser cannon, and six forward-firing shell launchers as well as additional anti-personnel blasters.
The tanks were crewed by battle droids at the Battle of Naboo, but they can be operated by living humanoids, as well.
AATs are frequently seen in Separatist armies in Star Wars: The Clone Wars.