The cannon has long symbolized the thunderous, destructive power of organized warfare in poetic tradition, its "cannon's mouth" appearing famously in Shakespeare's As You Like It as an image of reckless martial ambition. Tennyson's "Cannon to right of them, cannon to left of them" in "The Charge of the Light Brigade" captures the encircling terror of artillery fire. The cannon remains a resonant image for overwhelming, mechanized violence throughout literary history.

A cannon is a large, mounted gun that fires heavy projectiles, historically central to siege and battlefield warfare. Cannons revolutionized warfare from the fourteenth century onward, rendering medieval castles obsolete and shaping the modern battlefield. Cannon technology evolved from bronze and iron muzzle-loaders to rifled breech-loaders, with ever-increasing range and accuracy. In poetry, the cannon symbolizes raw, mechanical power—the thunderous voice of war that drowns out human speech. The "cannon's mouth" evokes the danger of direct exposure to fire. Related terms include artillery, howitzer, and culverin. The cannon's role as a siege weapon, battering walls and breaching defenses, has made it a symbol of overwhelming force. Famous cannons, like "Big Bertha" or the "Paris Gun," represent the extremes of military engineering and the ambition to strike from impossible distances.