While France used smaller bearskins, Spain preferred towering ones with long flowing bags, and while Britain had its tall cloth mitres with lacing and braiding, Russia would sport equally tall leather helmets with brass front-plates. The first headdresses were fairly low, and in the case of Spain and Austria sometimes contained elements from both mitres and bearskins. At the beginning of the 18th century and briefly during the 1770s, French grenadiers wore tricorne hats, rather than either the mitre or fur cap. Gradually, both began to increase in size and decoration, now showing devices such as pompoms, cords, badges, front-plates, plumes, braiding and also various national heraldic symbols. By the advent of the Napoleonic Wars, both mitres and fur hats had begun to fall out of use in favour of the shako. Two major exceptions were France's Grande Armée (although in 1812, regulations changed grenadier uniforms to those more similar to the ones of fusiliers, except in guard regiments) and the Austrian Army. After the Battle of Friedland in 1807, because of their distinguished performance, Russia's Pavlovsk Regiment were allowed to keep their mitre caps and were admitted to the Imperial Guard. During the Napoleonic Wars, British grenadiers had normally worn the bearskin only for full dress when on home service, since the fur was found to deteriorate rapidly during campaigning overseas. Following their role in the defeat of the French Old Guard at the Battle of Waterloo, the 1st Foot Guards was renamed the Grenadier Guards and all companies of the regiment adopted the bearskin. All British infantry grenadiers retained the fur headdress for parade dress until shortly before the Crimean War, where it was only worn by foot guard regiments. From the 17th Century to the mid 19th centuries the "Foot" or infantry regiments of the British and several other armies comprised ten companies; eight of them "Battalion" or "Centre" companies, and two "Flank Companies" consisting of one Grenadier and one Light or Light Infantry Company. In the United States an Act of Congress made on 8 May 1792 directed that for every infantry battalion there should be one company of grenadiers, riflemen, or light infantry. On occasion the grenadier and light companies could be "brigaded" together into separate grenadier and light infantry battalions for assaults or skirmishing respectively. Each of the line infantry regiments of the Austrian Army of this period included a grenadier division of two companies, separate from the fusilier companies which made up the bulk of the unit.