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Wolffe: "Enemy contact point two four. How many legs they got?"
Gregor: "Looks like four."
Wolffe: "Four? Well, how are they not falling over?"
Gregor: "Will you look at the size of those things!"
Rex: "Reinforced armor plating, heavy cannons and antipersonnel blasters."
Ezra: "I'm glad you guys are so excited, but those giant death machines are on their way to blow us to bits!"
―Clone Wars veterans Wolffe, Gregor, and Rex, and Jedi padawan Ezra Bridger encounter AT-ATs on Seelos[src]

Sometime after the formation of the Galactic Empire, the Empire utilized an early model of the All Terrain Armored Transport and used by the Empire's ground forces against the rebellion.[2] It was larger[7] than the model used during the Galactic Civil War, which particularly saw action at Hoth years later.[8]


The AT-AT walker was developed for use in the Imperial Army, the ground forces of the Galactic Empire. It was the successor of the All Terrain Tactical Enforcer that saw use during the Clone Wars.[9] although it constituted a far more imposing example of walker technology.[4]

In 4 BBY,[source?] the Imperial Security Bureau Agent Kallus led AT-AT walkers on an assault on the desert planet of Seelos against the Spectres and three retired clone officers aboard an AT-TE.[6]

AT-ATs were used again in 3 BBY against the Spectres, when Princess Leia Organa arrived on the planet to give the Ghost's crew three Sphyrna-class corvette. Two walkers were deployed to patrol the transports' landing platform, which were formally on Lothal to offer supplies to citizens impacted by the rebel efforts. When the rebels tried to steal the corvettes, the Ghost started firing on the AT-ATs. Four proton torpedos were not powerful enough to destroy one of the walkers, and it was necessary for Kanan Jarrus to use his lightsaber to cut its legs, toppling it. The second one was knocked down by the engines of the last Hammerhead, piloted by Ryder Azadi.[10]

In 2 BBY, Lieutenant Yogar Lyste deployed two AT-AT walkers, Walker 271 and Walker 414, to combat an attack on the east gate of the Imperial Armory Complex by members of the Lothal resistance led by Ryzder Azadi. The rebels Kanan, Ezra Bridger, and Chopper escaped in the stolen AT-DP Walker 216. However, Grand Admiral Thrawn realized that the rebels had hijacked the AT-DP walker and ordered his AT-ATs to crush them. One of the AT-AT walkers proceeded to crush the AT-DP under its heavy body but the rebels managed to use their lightsabers to cut their way aboard. Morad Sumar also fired a rocket which hit one of the walker's legs. After knocking out the AT-AT pilots, the two climbed out and escaped with Ryder's cell into the wilderness.[11]

Thrawn then deployed six of these during the battle on Atollon. Jarrus destroyed one with his lightsaber. The Force wielder, the Bendu then destroyed three of the AT-AT walkers. However, the last two were able to shoot him down from the sky.[12]

The walkers were used by Governor Arihnda Pryce on Lothal during the Rescue of Hera Syndulla. During the end of the engagement Kanan Jarrus and Hera Syndulla, and there the two were about to be picked up by Bridger and Sabine Wren on top of the[13] Lothal City fuel depot[14]. Two AT-ATs approached however, and Pyrce ordered the walkers to open fire on the fuel pod. An AT-AT pilot questioned this and referred to the fuel in the pods, but Pyrce told the pilot to follow his orders. The walkers fired, and Jarrus used the Force to hold back the explosion. He pushed Syndulla into Bridger and Wren's gunship, and the turned his attention to fully push the gunship away. Now no longer held back the explosion killed Jarrus,[13] but his sacrifice allowed the rebels to survive. Pyrce's decision did result in Jarrus's death, but Grand Admiral Thrawn viewed it as a mistake as it destroyed the Empire's entire fuel supply on Lothal for the TIE Defender project.[15]

It was later replaced by a different model by the time of the outbreak of the Galactic Civil War.[7]



Notes and referencesEdit

Galactic Empire walkers
All Terrain Armored Transport (Early Model · Late Model · Elite)
All Terrain Armored Cargo Transport · All Terrain Attack Pod · All Terrain Defense Pod
All Terrain Defense Turret · All Terrain Missile Platform (Mark III · Enhanced · Cold Weather)
AT-PT · All Terrain Recon Transport
All Terrain Scout Transport (Mark III · Cold-Weather · Enhanced)
All Terrain Tactical Enforcer · Mobile Heavy Cannon (Cold Weather)
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