Yellow is the official color of the armor branch of the U. S. Army, used in insignia, etc. , and depicted in Hollywood movies by the yellow neckerchief adorning latter-half 19th century, horse-mounted U. S. Cavalry soldiers. However, a review of the U. S. War Department's Regulations for the Uniform and Dress of the Army of the United States (1872, 1898) reveals that a neckerchief, of any color, was not an item required by dress code. Despite this, neckerchiefs were a popular accessory employed by cavalrymen to cope with the frequently dusty environs. The specific association of the yellow neckerchief with the U. S. Cavalry may have arisen from a work of popular American West artist Frederic Remington—Lieutenant Powhatan H. Clarke, Tenth Cavalry (1888).