Destiny Disrupted: A History of the World through Islamic Eyes

by Tamim Ansary

These Parthian knights were like mobile castles. But mobile castles are cumbersome, so the Parthians had another cavalry corps as well, lightly clad men riding naked horses. As a battle tactic, the light cavalry sometimes pretended to have been routed; in the hot middle of the fighting, they would suddenly turn tail and race away. The army they were fighting would break ranks and chase after them, losing all order as they clamored, “Get ’em, boys; they’re on the run; let’s finish ’em!” whereupon the Parthians would suddenly wheel around and fire into the disorganized rabble their opponents had become, annihilating them in minutes. This was later known as a Parthian shot, and when you hear the phrase “parting shot,” you may actually be hearing a corruption of the phrase “Parthian shot.”