The Charge of the Light Brigade was a military action undertaken by British light cavalry against Russian forces during the Battle of Balaclava in the Crimean War, resulting in many casualties to the cavalry. On 25 October 1854, the Light Brigade, led by Lord Cardigan, mounted a frontal assault against a Russian artillery battery which was well prepared with excellent fields of defensive fire. The charge was the result of a misunderstood order from the commander in chief, Lord Raglan, who had intended the Light Brigade to attack a different objective for which light cavalry was better suited, to prevent the Russians from removing captured guns from overrun Turkish positions. The Light Brigade made its charge under withering direct fire and reached its target, scattering some of the gunners, but was forced to retreat immediately.

Light cavalry comprised lightly armed and armored cavalry troops mounted on fast horses, as opposed to heavy cavalry, where the mounted riders were heavily armored. The purpose of light cavalry was primarily raiding, reconnaissance, screening, skirmishing, patrolling, and tactical communications. Prior to the 17th century they were usually armed with swords, spears, javelins, or bows, and later on with sabres, pistols, shotguns, or carbines.