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"They're the most heavily armored ground vehicles in the Imperial Army."
"...so what you're saying is that you have a thorough knowledge of just how screwed we are."
Thane Kyrell and Yendor, just before the Battle of Hoth[src]

The All Terrain Armored Transport (AT-AT) was a four-legged combat walker used by the ground forces of the Galactic Empire. With the Imperial-class Star Destroyer and the TIE fighter, it was one of the most famous symbols of the Empire's military might.

ModelsEdit

Early modelEdit

This model was used against the early rebellion.[3]

Later modelEdit

This model was used during the Galactic Civil War.[4]

Elite AT-ATEdit

This was a more heavily-armored variant with a darker color scheme.[5]

First Order AT-ATEdit

This was an upgraded version of the AT-AT used by the First Order.[6]

HistoryEdit

Age of the EmpireEdit

"I heard of these. Imperial armored transports. Giant four-legged things that were used to keep the peace on conquered worlds."
Scoggan, to Davjan Igo upon entering the ruins of an AT-AT[src]

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,[7] although it constituted a far more imposing example of walker technology.[2] Heavily armored and awe-inducing, the AT-AT positioned itself as the standard of Imperial firepower on the battlefield.[8]

In 4 BBY,[9] the Imperial Security Bureau Agent Kallus led three early AT-AT walkers on an assault on the desert planet of Seelos against the Spectres and three retired clone officers aboard an AT-TE.[3]

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 Hammerhead corvettes. 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 four of these during the battle on Atollon. Jedi survivor Kanan Jarrus then destroyed one with his lightsaber. The Force wielder, the Bendu then destroyed two of the AT-AT walkers. However, the last one was able to shoot Bendu down from the sky.[12]

Galactic Civil WarEdit

"That armor's too strong for blasters. Rogue group, use your harpoons and tow cables. Go for the legs; it might be our only chance of stopping them."
Luke Skywalker, during the Battle of Hoth[src]
Stolen at-at

The stolen AT-AT on Cymoon 1

Around the time of the Battle of Yavin, a new AT-AT model was introduced. At this time, the Alliance to Restore the Republic stole a number of AT-ATs and provided them to Saponza's Gang.[5]

During the Rebel assault on the Imperial weapons factory moon of Cymoon 1, a group of Rebels led by Han Solo and Leia Organa stole an AT-AT from Weapons Factory Alpha. They used the walker to escape from the factory after they sabotaged its main power core to explode. During their escape, Solo fired a shot that nearly killed the Sith Lord Darth Vader, using the AT-AT's powerful quad laser cannons.[13] Soon after, Vader managed to overtake the Rebels in their escape and cut down the massive walker's back-left leg. The AT-AT fell tremendously and its passengers barely managed to escape the wreckage;[14] before fleeing Cymoon 1 entirely for the safety of the Alliance Fleet[15]

Battle of Hoth

Three AT-ATs attacking Echo Base.

During the Battle of Hoth, General Maximillian Veers led a squadron of at least five AT-ATs on the icy fields of Hoth to knock out the shield generator that protected Echo Base, the Rebel headquarters. The triumph of Veers' squadron allowed the Imperials to invade Echo Base and rout the Rebels, striking a major blow in the war. However, the battle also revealed that the AT-ATs could be toppled by a cable wrapped around their legs. Although that weakness had been used effectively by the Alliance on Hoth,[4] the Empire continued to use these mechanical behemoths in the later stages of the war,[16] employing them in several skirmishes on Tatooine.[5]

In 5 ABY,[17] at least one AT-AT walker was stationed at Camp Sardo on the planet Kashyyyk. During the Liberation of Kashyyyk, several Wookiee guerrilla fighters, including Kirratha, hijacked the AT-AT walker and threw out the crew.[18] Shortly later, AT-ATs were deployed against New Republic forces during the Battle of Jakku.[19]

Rise of the First OrderEdit

Decades after the war's conclusion, a young scavenger named Rey used one of the downed AT-ATs, designated Hellhound Two, as her home on Jakku.[20]

The First Order used an upgraded version of the AT-AT as an escort to its newer AT-M6s.[6]

Behind the scenesEdit

MCQ-atat

AT-AT concept art by Ralph McQuarrie

The names "All Terrain Armored Transport" or "AT-AT" is never spoken in any of the films. Instead, the machines are referred to as "Imperial walkers." The AT-ATs used in The Empire Strikes Back[4] and the brief appearance in Return of the Jedi[16] were created with the use of stop-motion animation.

Initially, the Empire was to attack the Rebel base on Hoth using tanks.[21] Joe Johnston created many designs of these vehicles,[22] one of which was the basis for the HAVw A6 Juggernaut that appeared in Star Wars: Episode III Revenge of the Sith and the HAVw A5 Juggernaut in Star Wars Legends,[21] and the tanks themselves were to be portrayed by remote controlled vehicles. However, Dennis Muren and Joe Johnston convinced George Lucas to use stop motion instead,[22] which later eventually lead to the abandonment of the tank design.[21] In the DVD commentary to The Empire Strikes Back, George Lucas explains that he got the idea of the AT-AT from the massive tripods from H.G. Wells' 1898 novel The War of the Worlds.[23] Though it is popularly believed that dock machinery was the inspiration for the AT-AT, Phil Tippett has said otherwise, recalling that it was based on the prehistoric mammal Baluchitherium.[24] The AT-ATs featured in Star Wars Rebels series are different models than the ones in the Star Wars films, inspired by the early concept arts drawn by Ralph McQuarrie during the production of The Empire Strikes Back.[25]

AppearancesEdit

Non-canon appearancesEdit

SourcesEdit

Notes and referencesEdit

  1. FacebookIcon AT-AT. Star Wars Rebels (October 25, 2015, 5:55 pm). Retrieved on October 25, 2015, 11:55 pm. "The iconic behemoth of the battlefield." (screenshot)
  2. 2.0 2.1 2.2 Encyclopedia-Logo AT-AT walker in the Encyclopedia (link now obsolete; backup link)
  3. 3.0 3.1 3.2 Rebels-mini-logo Star Wars Rebels – "Relics of the Old Republic"
  4. 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 Star Wars: Episode V The Empire Strikes Back
  5. 5.0 5.1 5.2 5.3 5.4 Star Wars: Commander
  6. 6.0 6.1 6.2 6.3 Star Wars: Episode VIII The Last Jedi
  7. Encyclopedia-Logo AT-TE walker in the Encyclopedia (link now obsolete; backup link)
  8. Encyclopedia-Logo AT-ST walker in the Encyclopedia (link now obsolete; backup link)
  9. The events of this article take place in or between "Empire Day," which marks the beginning of the fourth year before the Battle of Yavin; and "A Princess on Lothal," which is the first known episode to take place in the third year before the Battle of Yavin. As such, we can deduce that this event takes place in the fourth year before the Battle of Yavin. For more information, see Wookieepedia's Timeline of Star Wars Rebels Events.
  10. Rebels-mini-logo Star Wars Rebels – "A Princess on Lothal"
  11. Rebels-mini-logo Star Wars Rebels – "An Inside Man"
  12. Rebels-mini-logo Star Wars Rebels – "Zero Hour"
  13. Star Wars 2: Skywalker Strikes, Part II
  14. Star Wars 3: Skywalker Strikes, Part III
  15. Star Wars 4: Skywalker Strikes, Part IV
  16. 16.0 16.1 Star Wars: Episode VI Return of the Jedi
  17. Star Wars: Galactic Atlas places the Battle of Endor during the year 4 ABY. Shattered Empire, Part IV, which shows Shara Bey and Kes Dameron settling on Yavin 4, takes place three months after the Battle of Endor, and Galactic Atlas places Bey and Dameron's move to Yavin 4 in the year 5 ABY.
    The novel Aftermath says that months have passed since the Battle of Endor. Aftermath: Life Debt begins two months after the end of Aftermath; therefore, the events of the former take place at least four months after the Battle of Endor. Since three months after the Battle of Endor is part of 5 ABY, as shown with Bey and Dameron's settling on Yavin 4, events of Life Debt must take place in 5 ABY at the earliest. On the other hand, the Galactic Atlas dates the Battle of Jakku, as depicted in Life Debt's sequel Aftermath: Empire's End, to 5 ABY as well, leading to the conclusion that Life Debt is set in 5 ABY.
  18. Aftermath: Life Debt
  19. Lost Stars
  20. Star Wars: Episode VII The Force Awakens
  21. 21.0 21.1 21.2 Databank title Clone turbo tank in the Databank (content now obsolete; backup link)
  22. 22.0 22.1 SWicon Phil Tippett: Hands-On Effects on StarWars.com (content now obsolete; backup link)
  23. Star Wars Episode V: The Empire Strikes Back DVD commentary
  24. Watercutter, Angela (May 24, 2012). 35 Years After Star Wars, Effects Whiz Phil Tippett Is Slowly Crafting a Mad God. http://www.wired.com. Wired. Archived from the original on June 17, 2016. Retrieved on August 14, 2016.
  25. SWCustom-2011 Relics of the Old Republic Trivia Gallery on StarWars.com (backup link)

External linksEdit

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