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The Ancients

What If Alexander Fought Rome?

14 May 2026

Transcription

Chapter 1: What if Alexander the Great had invaded Italy?

0.031 - 16.874 Tristan Hughes

Ever wondered why the Romans were defeated in the Teutoburg Forest? What secrets lie buried in prehistoric Ireland? Or what made Alexander truly great? With a subscription to History Hit, you can explore our ancient past alongside the world's leading historians and archaeologists.

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17.454 - 55.77 Tristan Hughes

You'll also unlock hundreds of hours of original documentaries with a brand new release every single week covering everything from the ancient world to World War II. Just visit historyhit.com slash subscribe. Alexander the Great and the Romans. Two titanic names from ancient history, two empire builders.

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57.132 - 79.887 Tristan Hughes

Alexander began in northern Greece and conquered the mighty Persian Empire, marching his troops as far east as India. The Romans began in central Italy and gradually expanded to dominate the Mediterranean world and beyond, conquering kingdoms in the process that had owed their creation to Alexander's actions centuries before.

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80.491 - 106.397 Tristan Hughes

Now the Romans never fought Alexander in battle, but many certainly thought about it. Intellectuals pondered what would have happened if Alexander had not died that fateful day in Babylon, aged just 32, and had instead headed west with his all-conquering army, crossing over into southern Italy, intent on expanding his empire even further. Would the Romans have had enough to stop him?

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106.833 - 134.321 Tristan Hughes

It's a scenario that one Roman historian in particular thought at length about. His name was Titus Livius, better known as Livy, who concluded that the Romans would have won, that they would have beaten Alexander even back then. Welcome to the Ancients. I'm Tristan Hughes, your host, and in this episode we're going to delve into this much discussed and debated hypothetical scenario.

135.142 - 165.316 Tristan Hughes

What if Alexander the Great had invaded Italy? What if he had fought Rome? Is Livy's argument credible? To discuss this with me is Dr. Stuart Brandt, professor of history at Cairn University and an expert on the Roman Republic and its military. Steele, welcome back to the show. It has been too long and it's great to have you back. It has been too long and it's marvellous to be back.

165.977 - 188.946 Tristan Hughes

We could have talked to you about so many different things, but I love this idea that you put forward, which is this question of what would have happened if Alexander the Great had invaded Italy and fought the Romans? And this is something that people love discussing even today, this hypothetical scenario that sadly never came to be. Maybe not sadly, but yes, neither came to me.

189.046 - 206.544 Steele Brand

Is it sad? Right. Sadly for the video gamers, right? Because I mean, there are entire games of like civilization or video games that they create where you get to have these fictional battles between, you know, a German panzer unit and, you know, an elephant core, you know, or whatever it may be. But yeah, it's, you know, I pose the question to you.

206.624 - 221.983 Steele Brand

And of course, I got in way over my head because you know a lot about Alexander, a lot more than I do. But it's the first alternate history in history. Livy's question, what would have happened if Alexander had invaded Rome? I can't think of one before that.

Chapter 2: How did Livy envision a conflict between Alexander and Rome?

621.335 - 642.774 Steele Brand

maybe up to four, even five or six commanders in the field at a time that all basically have the same level of legitimacy, even though the consuls are going to be the ones in charge at the top. Pro consuls have just as much authority in the field and are kind of like independent branches. So Rome's at a pretty good place at around 320, but not a perfect place. So they're a rising power.

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642.974 - 649.3 Steele Brand

Okay, well, I'll just sort of stop there and we'll give you a chance to explain what's going on with all the amazing accomplishments of the Macedonians.

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649.28 - 668.308 Tristan Hughes

Well, I can't do them all. I must admit, otherwise we'll be here for hours. But I think I want to kick this off also by saying that, you know, as all of that change is happening for Rome in Italy, Steele, it's not as if the Greeks have no idea about it at all. I mean, the Greeks have been trading in Italy. They've got their big cities in the south of Italy, you know, for centuries by this point.

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668.388 - 681.806 Tristan Hughes

And so you can imagine that stories of this slow rise of this new power in central Italy... would be filtering back to mainland Greece and city-states and probably even the Macedonian court as well, the royal court.

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681.826 - 700.347 Tristan Hughes

But it's interesting to also highlight that before I delve into Alexander's story, is that the Greeks would have known of the Romans and what they were doing at this time, even though still in their eye, in their mindset, it is a sideshow compared to the great superpower of the time, which is to their east, which is the Persian Empire.

700.529 - 719.151 Steele Brand

Yes. It's the Italiots. So there's the Italics. These are the mountain peoples that are in Italy, but then they're distinguished from the Italiots. And these are the Greeks in the south. And the culture for Rome comes from two places. It's either the Etruscans in the north. We're not entirely certain who they are, have been related to where they come from. or the Italians to the south.

719.212 - 740.256 Steele Brand

And they had this like rich, deep culture from these Greek colonies. And when they look on the Lucanians or the Samnites or any of the Oscans or the Romans, the Greeks are like, man, these guys are crazy barbarians. They're so backwards. Of course, they call the Persians barbarians too. I think the Persians probably have a much better claim to civilization than that. But

740.236 - 764.374 Steele Brand

You should mention 338, 338 BC. This is another one of these parallel years. This is the year when Macedon takes control of the Greek cities to the south. And it's largely due to Alexander that he's successful at the Battle of Chaeronea under the overall command of his father, of course. And this is the exact same year that Rome becomes the hegemon in Italy. So again, it's these parallel stories.

764.855 - 767.88 Steele Brand

And so it would have been interesting to see if Alexander had survived.

Chapter 3: What was the state of the Roman Republic during Alexander's time?

1181.652 - 1199.099 Tristan Hughes

He's a megalomaniac by this point. He's a brilliant warlord. He's won all of these battles. And it's fair to say that whether it's people who are angry against Macedonian hegemony in Athens in the West, or Greek soldiers who have been told they have to stay in Afghanistan and be a garrison there in the Far East.

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1199.199 - 1219.577 Tristan Hughes

They're probably not going to rebel if they haven't heard word that Alexander the Great has died. So he's got ambitions. There's a story that he wants to now... The next campaign would be the coastline of Arabia and taking over the rich trading cities on the Arabian coastline, which would connect him with the... the luscious market of Egypt and all the way to the Red Sea.

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1219.617 - 1224.973 Tristan Hughes

And there's also one last point I will mention, because I think this is important for where we're going to go.

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1225.595 - 1253.323 Tristan Hughes

He apparently also orders the building around this time of a new massive fleet of some a thousand ships to be built in the Eastern Mediterranean, which I also find very, very interesting indeed, which I think will be interesting as we get kind of like to the next stage of what if Alexander, now that he's residing in Babylon, maybe Arabia is his first point of call, but even if he wants to move his actual center to somewhere like Babylon,

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1253.438 - 1262.76 Tristan Hughes

Did he have designs ultimately to campaign further west? But still, that is the world of Alexander in 323 BC. I hope that was okay to follow.

1263.321 - 1272.122 Steele Brand

Oh, absolutely. Really well put. You can see the ingredients of success that he has already built if he wants to turn west with the way that you just described it.

1272.254 - 1290.27 Tristan Hughes

Yeah, and I think one other thing to say is obviously the wars and the success of that breakup when he dies is because there's no clear heir. If he hasn't died at that time, one of his wives, the aforementioned Roxana, this princess from Uzbekistan, she's pregnant at the time that Alexander did die. So if he didn't, and she gives birth to a son, which is Alexander IV.

1290.33 - 1302.16 Tristan Hughes

So Alexander will also have a legitimate heir at that time too. Still a kid, but Alexander does also now have a child. And he's also married to two more Persian princesses who you can presume he planned to have more

1302.14 - 1326.511 Tristan Hughes

children with so that's a that's another fun fact shall we now delve into this idea that should we do about like 322 or 321 BC just to say that maybe he's gone and campaigned in Arabia for a bit and he's come back right and he's now looking potentially to to go westwards. Do we have any idea what the Romans thought of Alexander the Great and his campaigns at that time?

Chapter 4: How did Alexander's military strategies compare to Roman tactics?

3204.049 - 3217.472 Steele Brand

He surprises the Etruscans. He attacks them at night. He defeats them. He steals his own men by not telling them in a different battle that you have reinforcements coming. You're all on your own. And if you don't defeat the enemy, they're going to destroy you.

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3217.452 - 3233.436 Steele Brand

And that allows them to pluck up their courage and go fight the enemy, knowing full well that the reinforcements are actually going to hit them in the rear. But if he hadn't, one, had the foresight to make sure that he knew the reinforcements were coming and put a contingent of men behind the hills. But then two...

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3233.416 - 3241.145 Steele Brand

Quintus knew his own men well enough to know if they know that, they're not going to fight the way they need to for us to win the battle. He would not have been successful. That's just great generalship.

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3241.586 - 3261.829 Steele Brand

When he's a really old man, Quintus Fabius Maximus is fighting with his fellow, Publius Decius Mus, and the two have been frequently in the same, they've served like three times as consuls together, both censors together. So the families clearly are, they're close. One's a plebeian family, one's a patrician. Well, Publius Decius Mus, he's no Darius.

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3261.989 - 3283.25 Steele Brand

His whole family has this tradition where they devote themselves to, if a battle is going badly, they go through really quick rites with a priest that is next to them. And then they go like charge into an enemy formation and devote themselves to the gods. Now this is like totally foolhardy. It's not a good strategy, but this is not Darius running off so he can fight another day.

3283.31 - 3304.444 Steele Brand

There's wisdom to doing that. But in this case, Romans have no shortage of people who are willing to die in battle. But what's interesting about this battle, the Battle of Simtinum, is Sodecius Muses now effectively killed himself in battle, and that side of the battle is not going well. Quintus Fabius Maximus has the foresight and the wisdom. He's holding the line on the other.

3304.484 - 3318.55 Steele Brand

He peels off a part of the rear of his forces, basically turns it into a reserve. and sends them to go reinforce Publius Decius Musis forces. And then he sends it, he peels off another portion to go and assist the cavalry and hit the Samnites in the rear.

3318.69 - 3339.904 Steele Brand

And then he slowly doggedly approaches the Samnite camp, but as he's like wiping out the forces and he prohibits his men from sacking the camp, that's really hard to do, right? really, really hard to do. That shows you this commander knows, like he has ironclad control of his men. And there are examples, manliest Torquatus, he executes his own son for disobeying his orders.

3339.924 - 3354.904 Steele Brand

This is how ironclad the Romans saw authority. But there's just one example of one guy and he's just one out of a dozen and that dozen has other dozens. And so I think the point that Livy makes is Alexander's got to live.

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