The Heavy Brigade was a British heavy cavalry unit commanded by General Sir James York Scarlett at the Battle of Balaclava in the Crimean War.
The Brigade of 800 horsemen made a charge against Russian cavalry.
The Russian force was in retreat and had halted.
Although the Heavy Brigade's uphill charge was at no more than a trot, it put the much larger Russian force, of around 3,000, into disorder.
This article about a specific British military unit is a stub.