In 1810, the British Army introduced metal rank insignia for field officers (majors and colonels) and generals. This was an arrangement of Stars and Crowns. The "Star" (nicknamed a "pip" in line regiments) was actually a raised diamond shape similar to the Knight Grand Cross star of the Order of the Garter. In 1855 metal insignia was introduced for subaltern officers (lieutenants and captains) and the star was changed to that of the Order of the Bath. In 1855 the Grenadier Guards and Coldstream Guards were granted Order of the Garter stars and the Scots-Fusilier Guards received Order of the Thistle stars for their service in the Crimean War. In 1919 the Irish Guards and Welsh Guards, the two newest regiments of the Brigade of Guards, received distinctive stars of their own for their service in World War One. The Irish Guards were granted the Order of St Patrick and the Welsh Guards were granted the Order of the Garter.