The Unstable Terrain Artillery Transport (UT-AT) was a type of repulsorcraft vehicle used by the Galactic Republic during the Clone Wars, notably seeing action in the Assault on Mygeeto with the Galactic Marines.
The UT-AT saw use late in the Clone Wars in the Assault on Mygeeto in 19 BBY, with several participating in the battle along with the Galactic Marines led by Jedi General Ki-Adi-Mundi and Clone Commander CC-1138 "Bacara." At least one was destroyed by a Separatist Octuptarra tri-droid during the battle.
- Star Wars: Episode III Revenge of the Sith (First appearance)
- Star Wars: The Visual Encyclopedia (First identified as UT-AT)