In no more than a few sentences, summarize Alfred, Lord Tennyson's poem, "The Charge of the Light Brigade."

The Charge of the Light Brigade was a charge of British light cavalry led by Lord Cardigan against Russian forces during the Battle of Balaclava on 25 October 1854, in the Crimean War. Lord Raglan, overall commander of the British forces, had intended to send the Light Brigade to prevent the Russians removing captured guns from overrun Turkish positions, a task well-suited to light cavalry. However, due to miscommunication in the chain of command, the Light Brigade was instead sent on a frontal assault against a different artillery battery, one well-prepared with excellent fields of defensive fire.