Carrhae: Rome Meets the Horse Archers
Persia: Empire and AfterwardsThe Richest Man in Rome
Marcus Licinius Crassus had money and political power and wanted the one thing he lacked: a military reputation to match Pompey's and Caesar's. In 53 BC he took seven legions east against Parthia, the empire that had risen on the Iranian plateau after the Seleucids faded. He was not obliged to go. He went looking for a triumph.
A Different Kind of Army
Parthia met him with perhaps ten thousand men against his forty thousand — but almost all of them mounted. The bulk were horse archers on light, fast ponies. The core was a thousand cataphracts: riders and horses both encased in armour, carrying lances heavy enough to go through a shield. The commander, Surena, brought a train of camels loaded with spare arrows.
What Happened on the Plain
Roman infantry tactics assumed the enemy would eventually close. These did not. The archers rode in, shot, and withdrew before contact, and when the legionaries locked shields the cataphracts charged the packed formation. When the Romans opened out to face the lancers, the arrows resumed. The camels meant the arrows did not run out. It went on all day.
The Parthian Shot
The manoeuvre that made it possible has kept its name for two thousand years: turning in the saddle at full gallop to shoot backwards over the horse's rump while riding away. A parting shot. Around twenty thousand Romans died and ten thousand were taken prisoner. Crassus was killed during a parley. The legionary standards were lost — a humiliation Rome felt for a generation, until Augustus recovered them in 20 BC by negotiation rather than war.
Why It Mattered
Carrhae set Rome's eastern limit. For the next seven centuries, first Parthia and then the Sassanids held the line against Rome and Byzantium — sometimes losing cities, never being absorbed. Rome conquered nearly everything it met. It never conquered Iran.
Key Dates to Remember
- 247 BC — The Parthian state emerges
- 53 BC — Carrhae — Crassus destroyed
- 20 BC — Augustus recovers the standards by negotiation
- 224 AD — The Sassanids replace the Parthians