While Marcus Licinius Crassus is often remembered as the “Third Man” of the First Triumvirate—sandwiched between the military glory of Pompey and the political genius of Caesar—his role from 60 to 53 BC was the glue that held the Roman world together. He was the financier of an empire, a man who understood that gold could be just as powerful as steel.
The Formation of the “Three-Headed Monster” (60 BC)
By 60 BC, the Roman Senate’s stubbornness had created three powerful enemies. Pompey wanted land for his veterans; Caesar wanted a consulship and a command; Crassus wanted tax concessions for his business allies in the equestrian order.
Recognizing that they were being blocked individually, the three formed an informal, secret alliance known to history as the First Triumvirate.
• Crassus’s Role: He provided the immense wealth and the deep network of political “clients” who owed him money.
• The Result: They effectively bypassed the Senate, dictating Roman politics through a combination of bribery, street muscle, and military prestige.
The Luca Conference (56 BC)
By 56 BC, the alliance was fraying. Pompey and Crassus loathed each other, and Caesar was occupied in Gaul. To save the partnership, they met at Luca.
1. The Deal: Crassus and Pompey would be elected consuls for 55 BC.
2. The Prize: Afterward, Pompey would receive the provinces of Spain, while Crassus was granted Syria.
3. The Motivation: Crassus, now in his 60s, was jealous of the military laurels won by his partners. He sought a conquest that would rival Caesar’s Gallic Wars.
The Parthian Ambition (54–53 BC)
Crassus arrived in Syria with seven legions. His target was the Parthian Empire, a wealthy power to the East. Ignoring the advice of his subordinates and local allies to use the mountainous terrain to the north, Crassus opted for a direct march across the Mesopotamian desert.
The Battle of Carrhae (53 BC)
The encounter at Carrhae remains one of the most significant defeats in Roman history. Crassus faced a Parthian force composed almost entirely of cavalry: Cataphracts (heavy armored cavalry) and Horse Archers.
• The Tactic: The Parthian horse archers used “The Parthian Shot”—retreating while firing arrows—to whittle down the Roman infantry.
• The Disaster: When the Romans formed a testudo (tortoise) formation for protection, the heavy Cataphracts charged them. When they spread out to avoid the charge, the archers decimated them.
• The Death of Crassus: Crassus’s son, Publius, was killed early in the fighting. Crassus himself was later lured into a “peace parley” where he was murdered.