While most Cossacks served as cavalry, several of the larger hosts had infantry and artillery units. Four regiments of Cossacks formed part of the Imperial Guard, as well as the "Konvoi"—the tsar's mounted escort. The Imperial Guard regiments wore tailored, government-issue uniforms, which were colourful and elaborate. For example, the "Konvoi" wore scarlet "cherkesska"s, white "beshmet"s, and red crowns on their fleece hats. The Guard Cossacks of His Majesty and the Ataman's Guard Cossacks, both drawn from the Don Host, wore red, and light blue, coats respectively. The Combined Cossack Guard Regiment, comprising representative detachments from each of the remaining hosts, wore red, light blue, crimson, or orange coats, according to squadron.