"With all these curses surrounding it, wouldn't you be afraid to cross it also, noble Caesar?"
After thinking a while Caesar replied: "A little, yes, but not much."
"So it is only because of the Flaminian priests' sacred protection that our Gallic legionaries would be willing to attack it, while the Roman legionaries would not," asked Hortensius, thoughtfully.
"Of course, the problem is not only military, but religious also," replied Caesar smiling.
"Is the Rubicon still defended by that red palisade?" asked Hortensius.
"Yes. Those ruby-red painted poles are occasionally restored and rededicated by a Flamen Dialis8 and must eternally protect and ensure people know where the Rome border is located, beyond which it is forbidden to march armed. Once Hannibal was defeated, that border was simply called Rubicon and now it has remained the border for entering and leaving the Roman territory," explained Caesar.
"I read a report that says: two legions under Pompey have left the Rubicon and lined up almost below Cesena," said Hortensius, increasingly curious to learn new things.
"Yes, but they haven't really left the Rubicon; they have arranged themselves on the three defensive lines that have always been the Rubicon since the time of Flaminius, when he tried to stop Hannibal between Rimini and Cesena."
A little surprised Hortensius asked, "The Rubicon has three defensive lines between Rimini and Cesena?"
"Of course, Commander Hortensius. The Rubicon was built on three defensive lines, spaced far enough apart from each other so that it was possible to maneuver between them without difficulty and thwart enemy attacks, as our Roman strategy for war should have taught you long ago," Caesar smiled slightly, who saw Hortensius as his young student.
"And which of the three lines would the Rubicon be?"
"They are all three defensive lines of the Rubicon, but only the final red line, the one just before Ariminium, built on the Pluso9 river is the one that is protected by a fence and made impassable to anyone coming armed against Rome," explained Caesar.
Hortensius was thoughtful for a moment and then added:
"What if we crossed it armed?"
"We will immediately be declared traitors and enemies of Rome."
"I understand. Why is that area called Romandia?" asked Hortensius, as tirelessly curious as he was.
"It is called Romandia, because it means crossing and the Roman district, in peacetime it is used to disband the legions before entering Rome or to rearrange and reorganize them to go north."
"Moreover, if you have read the latest military report, they are afraid we'll cross that line and they've hurriedly sent two Pompeian legions to the front line near Cesena to reinforce that area to prevent us from crossing," explained Caesar.
"Yes, I've read that report as well. It says the Pompeian legions have left the Rubicon and lined up on some well-defended rivers and trenches and are quite close to Cesena," replied Hortensius.
"Exactly, but I want you to look at the situation better," said Caesar as he pulled out a map of the place drawn on parchment that he opened in front of Hortensius.
"Pompey's legionaries camped, more or less here, near Caes Arena, as did the Consul Flaminius against Hannibal. And their first line was located on this river, which can be flooded by diverting the waters thanks to the locks and channels located upstream a few miles towards the mountains above Caes Arena," said Caesar while showing him the place on the map.
"And where is the Rubicon's second line?" asked Hortensius.
"It's here! A few miles back on another stream, at a place called Ad Confluentes, which can always be flooded by diverting the waters upstream," Caesar showed Hortensius where it was on the map.
"And where is the final line?"
"It is this red line you see drawn here, a few miles further south near Ariminium,10 where it is defended by a red wooden fence that stands as much as four meters tall for the reasons I've just told you. And this is the impassable border that, with or without the favor of the Gods, I intend to cross," concluded Caesar threateningly.
What was the real Rubicon?
You should have understood this already from the conversation between Caesar and Hortensius, but let's try to summarize what has happened over time.
For centuries historians have debated and puzzled about what the real Rubicon was because of the fact that according to historical sources, legends and geological reconstructions, it now seems to have been a river that passed near Cesena, now other rivers between Savignano and Santarcangelo di Romagna,11 which was true in a way, but a few details were lacking that created a little confusion.
The confusion was related to the fact that long before, at the time of the Consul Flaminius, the Romans had created a defense made up of three defensive lines arranged one behind the other, as instructed by the military technique of the time, to stop no one less than Hannibal12 who had crossed the Alps with his troops and some elephants and would descend towards Rome by way of the Via Flaminia. Its construction had been completed a few years before, and the people in the area had named it Roman-Dia and also Roman-Via, which meant, if you prefer, Roman Crossing or Way to Roma.
The names Romània, Romandiola and the current Romagna were derived from these terms.
The final defensive line of the Rubicon had been drawn almost entirely on the river that is known today as the Uso.
The other two lines of the Rubicon were: one on the Pressatellum river today called Pisciatello and the other on the river now called Fiumicino. And probably both, if not all three, were linked by canals and hydraulic locks to the mountain springs of the Urgon, another river whose name historians believe meant Rubicon in the Romagna dialect, but which in Etruscan meant something else, as you will read more about later.13
Several miles of that boundary on the Uso river were cordoned off by a row of tall wooden poles and boards held together by iron and metal brackets and, until 1750, remnants of those palisades still existed on the banks of the Uso river, so much so that the farmers there used to take them to make agricultural tools.
If you now think that such a work was too large or impossible for the Romans, you should know that Crassus, a contemporary triumvirate of Caesar, created a similar work around 70 BCE, which divided Calabria in two, from the Tyrrhenian to the Ionian coast, with a four meter high palisade, to isolate the revolt of Spartacus and his rebel gladiators who had taken refuge in Aspromonte.
Moreover, the Rubicon had stones and red cultured sand on the Uso river that no longer exist today, but had been in existence until the end of the 1700s, as the academic historians of the time reported and argued about for a long time, theorizing that the Romans had colored them red to make it clear that this was the Rubicon.
However, those were not really stones and sand that the Romans had purposely colored red, but the ruby-red pigment that had fallen to the ground once the color on the wooden palisade had been swept away little by little by rain and floods, as time passed and the wood of the palisade had rotted.
Furthermore, opening barriers and water channels upstream from the sources of the Urgon would have swelled the Rubicon; the steep banks14 were raised artificially to sink those attacking and attempting to cross it on foot or on horseback into the mire, not to mention Hannibal's elephants.
Furthermore, opening barriers and water channels upstream from the sources of the Urgon would have swelled the Rubicon; the steep banks14 were raised artificially to sink those attacking and attempting to cross it on foot or on horseback into the mire, not to mention Hannibal's elephants.
The land, where the Rubicon was located, was called Roman-dia, diameter, district or Roman area, since the land was used by the legions to cross or camp entire units of legionaries, before entering the Roman territory or to recompose new legions, including veterans and those waiting nearby to be enlisted before marching to the north and the Gauls.
Therefore, when someone says that Romagna has always been a happy and hospitable land full of festivals and entertainment, they are telling the truth, because it was true even then, as was all the land along the border, where the legionaries from various places set down their arms, collected their reward and devoted themselves to various festivities and leisure time, while waiting for new engagements and assignments.
And perhaps it is not even a coincidence that many German citizens and those from northern Europe have continued to come to Romagna for their holidays for centuries and consider it their second home, but there is more to be learned about this.
The conversation between Caesar and Hortensius continues
As they continued to travel across Romagna, Caesar told Hortensius: "You should know that what Pompey is doing with us now, Gaius Flaminius had also been deployed to the Puniceus Rubicon in defense formation when he was waiting for Hannibal's descent."
"And how did it end between Flaminius and Hannibal?" asked Hortensius.
"It ended badly. The tribune Flaminius was good as a builder and politician, but he was a little less so as a soldier. He first built the Via Flaminia and then, using the same military engineers, he made a splendid defensive line against Hannibal. But he made a careless strategic error and none of it ended well," said Caesar
"What mistake did he make?"
"When some of Hannibal's units arrived in advance in front of the Rubicon, they saw the well-organized and defended lines that blocked their way to the road to Rome. So they decided to avoid getting into an inconvenient fight and to pass through the Apennines, departing Cesena and going towards Sassinia and Balneum, then continuing to Arretium in the Tiber valley,15 while the bulk of Hannibal's army went through the mountains above Modena and re-joined the units in advance."
"And then?"
"Flaminius felt cheated and made the strategic miscalculation of leaving the Rubicon with his troops, and he began to chase Hannibal through the Apennines. It was an immense tactical error because Hannibal, having crossed the Alps, had a tactical superiority on those mountainous trails, while Flaminius's legions were trained and accustomed to garrison a place and to march and maneuver in compact formation on flat, wide planes," Caesar explained.
"And how did it end?" asked Hortensius.
"It ended extremely badly. Flaminius began to pursue Hannibal who drew him into a long and narrow gorge, where there were mountains on one side and Lake Trasimeno on the other, which prevented him from being able to manoeuver.
While Hannibal was pretending to escape, he made his cavalry climb into the mountains to wait for the Roman troops and so, when Flaminius arrived, he was surprised by Hannibal's cavalry, who first tumbled large boulders onto the Roman formation, broke it apart and then fell upon them on horseback, exploiting the strength and speed they could gain down the mountain slopes to subdue and overwhelm them."
"At the same time a part of Hannibal's army, which had pretended to escape, turned and went to meet the Roman army to finish them off in hand-to-hand combat. Thousands of Romans died including Flaminius," explained Caesar.
"How is it possible that Flaminius made such a tactical error?" asked Hortensius.
"I've no idea. It was probably the senate in Rome that became scared and ordered Flaminius to leave the Rubicon to join the legions under another consul, who was waiting for Hannibal outside Rome, and then attack Hannibal together in the open plain."
"However Flaminius, during the march, reached Hannibal's army a lot earlier and began to pursue him closely, which is a very dangerous thing to do while moving in narrow spaces and roads because of the counter-moves and maneuvers the opposing army is able to perform."
"What countermoves?"
"Come on, Commander Hortensius. Counter moves such as halting to take them by surprise, turning and quickly preparing for battle and waiting for the enemy army, which continues to advance rapidly, falling into your hands as the vanguards are propelled by the units in the rear that march on too quickly and push through ever knowing what's happening up ahead," smiled Caesar who had seen and played such tactical maneuvers during military campaigns in Gaul.
"Ingenious. But how would you have done it, Caesar?"
"The senate should have ordered Flaminius only to follow Hannibal a little further away, without making contact and at the same time have the other consul, who was waiting for Hannibal outside Rome, create a small defensive line, so as to take him in the open plain with an army in front and one behind," explained Caesar.
"Nice strategy," said Hortensius.
"It is the simple Roman military school of today. When an army marches against someone and is attacking and is stopped somehow, it is already tactically defeated. And that's what Hannibal was able to do to Flaminius."
"And when an army that is defending something is somehow dispersed it is already tactically defeated. And it is another mistake that Flaminius and the Senate made against Hannibal, when they ordered Flaminius to leave the Rubicon and he began to pursue Hannibal through the mountains," said Caesar smiling to himself.
"But I, if required, will not make a similar mistake against Pompey," concluded Caesar.
"So what are we going to do against Pompey's two legions lined up on those lines waiting for us?" asked Hortensius.
"Nothing for now. I will officially hand over the land I have promised to the Gallic legions and legionaries in Romandia, and will send Curio and Mark Anthony to Rome to ask the Senate if I can be appointed Chief Consul of the Year," replied Caesar.
"And what will we do if they don't make you Chief Consul of the Year?"
"We'll march on Rome and explain it to them," said Caesar.
"Shall we also make a detour, as Hannibal did into the Alps,16 instead of crossing the Rubicon?" inquired Hortensius curious.
"No, you can no longer easily branch off towards the Alps."
"Why?"
"After the conflict against Hannibal and the death of Flaminius, Rome learned its lesson and built a road and a new defensive line on the Apennines called Flaminia minor17 in honor of his son, which allows, if needed, to quickly demobilize troops near the Rubicon and move them to garrison the defensive line through the Apennines. But that's not what worries me," Caesar replied, smiling certain about what he was doing.
"Do you mean that we will attack and break through the Rubicon directly?" Hortensius asked, a little worried about this possibility.
"If you want you can, but the Rubicon may also be compromised," replied Caesar smiling.
"How?" asked Hortensius.
"Don't let this worry you for now, Hortensius. You know very well that many legionaries do not want, and do not intend, to attack the Rubicon because they could attract the revenge and the anger of the Gods who defend it, but I know that border well and I also know a few commanders and legionaries who guard it."