FALLOUT Season 2 Introduces Caesar’s Legion Faction From NEW VEGAS

“No good deed goes unpunished.” On Fallout season two, Lucy MacLean finds out why. In season two’s second episode, she went out of her way to help an injured woman, both despite The Ghoul’s warnings and despite his injuries. She even left behind her more experienced, more cynical, more ruthless traveling companion to escort that injured stranger home. It turns out that the woman she helped in Fallout season two, episode two, is a slave of Caesar’s Legion, a major faction introduced in Fallout: New Vegas. In episode three of Fallout season two, we get to catch up with the fascist organization, identified by its golden bull on a red flag and based on Ancient Rome. And it definitely still isn’t “nice” like Lucy, especially not to strangers or to women.

But things have changed for Caesar’s Legion between New Vegas and Fallout season two. Fortunately for Lucy, the Legion doesn’t appear to be as strong as it once was… And it’s in a bit of a civil war. Here’s everything you need to know about Caesar’s Legion from the Fallout: New Vegas video game, along with everything we know about it from Fallout season two so far.

What Is Caesar’s Legion in Fallout: New Vegas? The Game Faction, Explained

In Fallout: New Vegas, three forces—Mr. House, the New California Republic (NCR), and Caesar’s Legion—vie for control of the Hoover Dam, the Mojave Desert, and New Vegas itself. Prime Video’s Fallout made the NCR a major part of its first season, and we’re touching on it again in the series’ second chapter. In Fallout season two, episode two, we see how Hank MacLean and (seemingly) Robert House conspired to blow up the flourishing NCR capital city of Shady Sands. But this episode also brought the third group from Fallout: New Vegas to the Fallout series, Caesar’s Legion.

In the Fallout games, Edward Sallow, a citizen of the NCR and one of three missionaries sent to study tribal languages to the east, founded Caesar’s Legion in 2247. He named himself Caesar and based his militaristic dictatorship around the ideals of Ancient Rome. (Or at least the ones he liked most.) In Fallout: New Vegas, we learn that Caesar’s Legion grew in power over time, as it conquered surrounding tribes, which it forcefully assimilated into its brutal regime.

What Does Caesar’s Legion Believe in Fallout: New Vegas?

Not everyone hated Caesar’s Legion in Fallout’s world. It did provide a level of structure and safety to a previously wild and dangerous area. But it did so with an iron fist. It either killed or enslaved its many conquered foes, though those allowed to live were allowed to live as it liked under the Legion’s rule…so long as it never questioned Caesar’s orders or delayed in following them.

Caesar’s Legion also marked slaves in Fallout: New Vegas, who wore cheap rags, with a red “X” like the one that adorns the tunic on the woman Lucy saved in Fallout season two. The Legion, which was mostly a military force rather than a society, did not bestow any form of citizenship on its own members, all of whom lived simply to serve and ultimately die for Caesar. Unlike in Ancient Rome, not even the highest members of Caesar’s Legion could ever hope to attain any real rewards for their service.

Only men could serve as soldiers, as Caesar forced strict gender norms in the Legion. Women could only fill traditional sexist roles. They were also seen primarily as breeders, as the Legion needed to grow its ranks. Caesar’s Legion uses women in vile ways, which Fallout’s show alluded to when the women Lucy saved warned her about avoiding New Vegas.

It also views outsiders like Lucy as “profligates,” the term Lucy’s temporary traveling partner used to describe her. The Legion considers anyone not a part of its domain to be profligates, a group worse than slaves. “Captures” like Lucy are either elevated to slaves or killed.

Caesar’s Legion Is a Faction That Turns Away From Technology

The Legion does have a religion. It worships Mars, the Roman god of war. But it (mostly, despite what its leader wears on his wrist) does not employ or allow any technology, certainly not robots. It also eschews modern medicine. Caesar outlawed stimpacks in Fallout: New Vegas, which is exactly what Lucy used to save the Legion’s woman slave in Fallout season two, episode two.

The Flag of Caesar’s Legion

In Fallout: New Vegas, we learn the Legion’s flag contains a golden bull on a red background. It hangs down like a banner instead of hanging sideways like a normal flag. Joshua Sawyer, the developer of Fallout: New Vegas, revealed that the flag of Caesar’s Legion was based on the standard of Legio X Equestris, Julius Caesar’s favorite legion. Sometimes, Caesar’s Legion can be referred to as “bulls” in the Fallout world. It seems the flag, and the bull on it, represent Caesar’s Legion’s devotion to Caesar and to the idea of “masculine strength.”

Caesar’s Legion vs. The New California Republic in Fallout: New Vegas

In 2277, three decades after its founding, Caesar’s Legion was powerful and strong enough to challenge the New California Republic. The two forces had been slowly moving towards one another, as the NCR pushed east and the Legion pushed west. That year, they fought for the Hoover Dam and the power that came with it. The NCR won. Barely. And not by enough to wipe out the Legion.

Sallow regrouped and overtook more tribes, and by the time of Fallout: New Vegas in 2282, he and Caesar’s Legion were ready to try to take the Hoover Dam again. That game features four possible endings, with each also having variations. In one of the four Fallout: New Vegas endings, Caesar’s Legion wins, as New Vegas falls to a fascist dictatorship. In one variation of that ending, though, Sallow dies, and his second in command takes command.

Caesar’s Legion in Fallout Season 2 Is Weaker Than It Was

Prime Video’s Fallout, set 15 years after the Second Battle of Hoover Dam, is not treating any New Vegas ending as canon. The show’s creators are using a “fog of war” approach, in which no one really remembers exactly what happened. That means every ending from the game both happened and didn’t. We’ve already seen evidence of that, as the NCR doesn’t seem as powerful as it was 15 years prior. New Vegas itself also seems to have experienced a terrible battle that turned the once bustling entertainment center (it was mostly spared during the Great War) into a memorial of brutal battle. It seems Caesar’s Legion is just as weakened as its two former New Vegas enemies in Fallout season two.

The Ghoul was surprised to see anyone in a “tunic” that far west. His surprise suggests enemies pushed Caesar’s Legion back east. The fact that the Ghoul never warned Lucy about Caesar’s Legion before they entered that building also shows how little the Ghoul was concerned about this faction. Caesar’s Legion is just not what it was in Fallout season 2.

Caesar’s Legion Is Spilt Into Two and Facing Civil War in Fallout Season 2

But what is Caesar’s Legion in Fallout season two? Well, the answer is divided. As Macaulay Culkin’s character, Lacerate Legate, explains to Lucy before callously strapping her to a cross to die, the death of the original Caesar, Edward Sallow, left a power vacuum that no one ever truly filled. Unsurprisingly, the Legion is no good at communicating and working together. And, instead, the world of Fallout season two sees them divided into two identical factions, each with its own Caesar and Legion. Culkin’s character explains that both sides believe the original Caesar wrote down the name of his successor and put it in his pocket before his death. But Sallow’s body just happens to be lying between their camps, and neither side will allow the other to retrieve it and confirm the succession. Instead, both Casaer’s Legion factions are in a stalemate that could erupt into civil war at any moment.

To rescue Lucy, The Ghoul blows up one of Caesar’s Legion camps and sparks that civil war between them. If Caesar’s Legion just destroys itself on Fallout season two, no one will be too sorry.

Will Caesar’s Legion Return as a Faction in the Prime Video Fallout Series

The Ghoul tried to warn Lucy against helping the woman she saved. But Lucy didn’t listen and that led us into Fallout season two’s version of Caesar’s Legion. For now, the Legion is occupied fighting itself. But even a weak, divided Caesar’s Legion is dangerous. We may very well see Caesar’s Legion return to haunt the narrative as Fallout season two continues.

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Originally published on December 24, 2025.