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For other uses, see Sentinel.
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"Operation: Cinder is to begin at once. Resistance. Rebellion. Defiance. These are concepts that cannot be allowed to persist. You are but one of many tools by which these ideas shall be burned away."
―A posthumous message from Emperor Palpatine, to Admiral Garrick Versio[src]

Sentinels were a type of droid model used by the Galactic Empire and programmed to serve the will of Galactic Emperor Sheev Palpatine. The droids were manufactured in the Imperial base on the planet Vetine, and were capable of playing pre-recorded messages from their head. After the death of Palpatine during the Battle of Endor, multiple sentinel droids known as the Messengers carried the late Emperor's posthumous messages to Imperial commanders with instructions to initiate Operation: Cinder.

Description and roles[]

"All sentinels and messengers are programmed to serve [the Emperor's] will, even in death."
―Gallius Rax's sentinel explaining his purpose to Rae Sloane[src]

Sentinels were humanoid droids.

Sentinels were humanoid in shape, and their bodies greatly resembled[1] the B1-series battle droids once used by the Trade Federation[7] and the Confederacy of Independent Systems.[8] However, contrary to those battle droids, sentinels were clothed in bright red robes that resembled[3] those once worn by the Emperor's Royal Guard.[9] Over those robes, some of them wore red jackets that had gloves built in.[3] Others, however, had no such hand coverings.[4]

Also unlike battle droids, sentinels had heads that resembled a helmet with a smooth glass dome. Their glass masks were in fact screens used to display lifelike images of the late Palpatine's face. Finally, sentinels had human-like five-fingered hands[3] with a holoprojector built at the center of their palms,[4] and a retractable needle that allowed them to verify the identity of a message's recipient by analyzing their blood.[3]

The sentinels were created as part of the Contingency. Most of them were merely messengers: they appeared, verified the identity of the message's recipient, gave commands, and left. The ones reserved for Gallius Rax, however, were much more independent and closer to actual sentience. They were also capable of piloting starships and of killing intruders when protecting secret assets.[4]

The sentinels were also uniquely designed, with a core directive to express a particular emotion, speculated to be loathing or spite by The Surgeon. They also had access to a wide array of mathematical formulas used to measure an individual's loyalty (from the Emperor himself to the broader Empire), resourcefulness, and conscience. These formulas recognized variables such as past kills (during or outside of military service), disciplinary actions, family trauma, education, genetic predisposition, species predispositions, personal associations, history of obedience to unlawful commands, involvement (including nonparticipatory exposure) in physical interrogation, and MDC-count. The coding in a sentinel was ultimately designed to assess individuals as parts of units, and then render judgement on the units as a whole, determining the moral character of a battalion or fighter wing based on current or past leadership and membership. These calculations gave the most weight to a unit's worst members, tracing their corrupting influence on those around them. In essence, the sentinels were used to track down units most susceptible to corruption, and then exploit that corruption.[5]

History[]

Origins[]

"You will know. I will send a sentinel."
"Yes, my lord."
―Palpatine and Gallius Rax[src]

The sentinels were first made in or prior to 20 BBY,[6] when Palpatine was still the Supreme Chancellor of the Galactic Republic engulfed in the pan-galactic Clone Wars against the Confederacy of Independent Systems.[10] At the time, many were assigned to the protection of the recently built Observatory on Jakku, one of many similar buildings scattered across the galaxy. These sentinels were used to guard the Observatory and the various ancient Sith artifacts stored inside. The sentinels played an important role as transmitters of the Emperor's Contingency plan, which involved destroying the Empire in the event of his death and sending a few worthy Imperials into the Unknown Regions to rebuild the Empire.[4]

Operation: Cinder[]

"My message is for you, from the Emperor himself."
―A sentinel, to Captain Lerr Duvat[src]

A sentinel aboard the Torment

In the days following the Emperor's death at the Battle of Endor, a sentinel traveled aboard a Lambda-class T-4a shuttle to the Star Destroyer Torment, captained by Lerr Duvat, at Rendezvous Point: Victim in the Outer Rim. The sentinel met Duvat aboard the ship's bridge, after Duvat had dismissed his officers. Upon verifying Duvat's identity with blood, the sentinel delivered a posthumous message from Emperor Palpatine, stating that Operation: Cinder was to begin immediately. The sentinel then presented Duvat with his target: the Mid Rim world of Naboo.[3] Another sentinel was dispatched to Fleet Admiral Gallius Rax, who was tasked with carrying out the Contingency.[4]

One of the Messengers arrived in the hands of the 204th Imperial Fighter Wing, and it ordered them to commence Operation: Cinder.[11] It then ceased to provide updates. After weeks, it served as a centerpiece of a shrine aboard the Aerie to what the Imperials had lost. After the Aerie was stripped of parts and served as a decoy during the Troithe operation, the Messenger survived the ship's destruction and was found by the wreckage of the Edict.[12] It later had the misfortune of wandering upon Yrica Quell when she was in the midst of sending a signal to the New Republic, resulting it in being fatally shot and deactivated. It was then dismantled by both her and her commanding officer, Soran Keize before it's core parts were brought to a droid known as The Surgeon. It dissected the Messenger and gave crucial intelligence to Yrica Quell, who shortly afterward, shared the information with the New Republic and Soran Keize.[5]

In 5 ABY,[13] three months after Endor, the Rebel heroes Luke Skywalker and Shara Bey discovered a manufacturing line of sentinels while carrying out a mission to retrieve fragments of a Force-sensitive tree from an Imperial base on Vetine. The assembly line was destroyed during the confrontation between the Rebels and Commandant Hurron's troops.[1]

Battle of Jakku[]

In the lead up to the Battle of Jakku, a sentinel informed the now-Counselor to the Empire Rax that the deposed Grand Admiral Rae Sloane was approaching the Jakku Observatory with Niima the Hutt's caravan. During the Battle of Jakku, Rax traveled with the former Commandant Brendol Hux, his son Armitage, his child soldiers, and Adviser Yupe Tashu to the Observatory on a transport piloted by the sentinel. Using the sentinel pilot, Rax transmitted commands ordering the turbolasers and sentinel droid defenses to power down.[4]

The sentinel pilot later piloted a replica of the Emperor's yacht Imperialis into the Unknown Regions. The ship's passengers included both the Huxes, the child soldiers, and Grand Admiral Sloane. During the journey, the sentinel told Sloane that a dozen path coordinates had been transmitted to Imperials considered loyal to the late Emperor. The droid informed her that all sentinels and messengers were programmed to serve his will even in death. After several months of traveling, the Imperialis rendezvoused with the Emperor's flagship Eclipse.[4]

Legacy[]

Years later, the B1 battle droid R0-GR wrote the droid guide "droidography." In the section describing the increasingly blurred line between organics and droids, he recounted that it was rumored Palpatine used sentinel droids bearing his image to deliver direct messages to officers. R0-GR felt this made the Emperor even more horrifying and included an image of a sentinel droid.[14]

Behind the scenes[]

Sentinel droids first appeared in Shattered Empire 2, the second issue of the Marvel Comics miniseries Star Wars: Shattered Empire, which was released on October 7, 2015. The concept was written by Greg Rucka while the droids were drawn by Marco Checchetto.[3]

Appearances[]

Sources[]

Notes and references[]

External links[]