Following the War of 1812, the US Army again updated and standardized its uniforms. The new ones were noted for their blue wool coats that featured high-necked collars and front-facing buttons.

War of 1812 (1812-1815) ... The M1912 and M1917 service uniforms used by the American Expeditionary Force in World War I were olive drab in ... Military uniforms of this era included many revised ...