Horse artillery refers to a type of military unit that uses horses to move artillery pieces quickly on the battlefield. This allows for greater mobility compared to traditional artillery units, which are often slower and less flexible. Horse artillery units can rapidly reposition their guns to respond to changing combat situations, making them valuable in warfare. Typically, horse artillery consists of lighter cannons and a smaller crew, enabling faster deployment and firing. These units were especially prominent during the 18th and 19th centuries, playing significant roles in conflicts such as the Napoleonic Wars and the American Civil War.