Greek fire was a devastating incendiary weapon used by the Byzantine Empire, first employed at the Siege of Constantinople in 674 AD against the Muslim fleet of the Umayyad Caliphate. This liquid fire could be projected from ships through a bronze tube, and it would ignite on contact with water, burning even on the sea itself. The exact composition of Greek fire was a closely guarded state secret, and it was never successfully reproduced by any other civilization. This weapon was far ahead of its time, and its technological sophistication gave the Byzantines a significant naval advantage for centuries.

Greek fire has inspired awe and terror in poets and chroniclers for centuries, appearing in epic poems and historical accounts as a symbol of divine wrath or the pinnacle of Byzantine ingenuity. It is mentioned in the works of the Byzantine poet John Tzetzes and has been referenced in modern poetry as a metaphor for unstoppable force or the dangers of secret knowledge. The weapon's mysterious nature and its role in defending Christendom have made it a powerful symbol in Western literature, representing the thin line between civilization and barbarism.