Legio tertia decima Geminia, in English the 13th Twin Legion, also known as Legio tertia decima Gemina, was a legion of the Imperial Roman army. It was one of Julius Caesar's key units in Gaul and in the civil war, and was the legion with which he famously crossed the Rubicon on January 10, 49 BC. The legion appears to have still been in existence in the 5th century AD. Its symbol was the lion.
Legio XIII was levied by Julius Caesar in 57 BC, before marching against the Belgae, in one of his early interventions in intra-Gallic conflicts. During the Gallic Wars (58–51 BC), Legio XIII was present at the Battle against the Nervians, the Siege of Gergovia, and while not specifically mentioned in the sources, it is reasonable to assume that Legio XIII was also present for the Battle of Alesia.
After the end of the Gallic wars, the Roman Senate refused Caesar his second consulship, ordered him to give up his commands, and demanded he return to Rome to face prosecution. Forced to choose either the end of his political career, or civil war, Caesar brought Legio XIII across the Rubicon river and into Italy. The legion remained faithful to Caesar during the resulting civil war between Caesar and the conservative Optimates faction of the senate, whose legions were commanded by Pompey. Legio XIII was active throughout the entire war, fighting at Dyrrhachium (48 BC) and Pharsalus (48 BC). After the decisive victory over Pompey at Pharsalus, the legion was to be disbanded, and the legionaries "pensioned off" with the traditional land grants; however, the legion was recalled for the Battle of Thapsus (46 BC) and the final Battle of Munda (45 BC). After Munda, Caesar disbanded the legion, retired his veterans, and gave them farmland in Italy.
Legio was a Roman military camp south of Tel Megiddo in the Roman province of Galilee.
The approximate location of the camp of the Legio VI Ferrata was known from the persistence of its name in the form Lajjun by which a Palestinian Arab village was known.
It was close to the ancient town of Rimmon, perhaps the Hadad-rimmon of Zechariah 12:11, which in the 3rd century was renamed Maximianopolis (City of Maximian) by Diocletian in honour of his co-emperor Maximian. Both places were within a single episcopal see, generally called Maximianopolis, but in one list of such sees the name Legionum (genitive plural of the Latin word Legio) is used, where the Greek original has "Maximianopolis".
In 2002–2003, an archaeological survey was made in the Legio region by Yotam Tepper as part of his master's thesis. The survey located the legionary camp on the northern slope of El-Manach hill, the village of Ceparcotani on the adjacent hill, and the city of Maximianopolis on the site of the contemporary Kibbutz Megiddo. In 2013 Tepper and the Jezreel Valley Regional Project dug test trenches measuring approximately 295 feet by 16.5 feet that revealed clear evidence of the camp. No military headquarters of this type for this particular period had yet been excavated in the entire Eastern Empire, and the 2013 excavations uncovered defensive earthworks, a circumvallation rampart, barracks areas and artifacts including roof tiles stamped with the name of the Sixth Legion, coins and fragments of scale armor.
Legion of the 13th
The dye is cast
As we cross the Rubicon, the dye is cast...
The blood will flow
They call it the point of no return
But for us it just begun
Rome's most lethal weapon
The twin legion has arrived
Revolution is at hand
The fire in the sky is damned
The brave will rise
The shadows of light
This strength and honour
Determined to conquer
Fate to dominate
Architects of war
We are the 13th
Brothers in arms
Our enemies will fear
The power that we cheer
We live to fight this dream
To unify our world
In dominance we rise
Together we shall die
Bleeding for our sun
Our legacy never undone
We massacred the opposition
We walk in glory, in all our envy
Loyal to the god of Mars
They crossed out path and they were lost
Hand to hand we killed them all
Blood drenched and ripped apart
Feed them to the rabid dogs
The 13th is law
The brave will rise
The shadows of light
This strength and honor
Determined to conquer
Fate to dominate
Architects of war
We are the 13th