Highland Regiments raised in the 18th and early 19th centuries employed many unique symbols to differentiate themselves from other regiments and enlisted distinctive music to announce their arrival, but as a result of the Cardwell Reforms of 1881, all British Army Highland Regiments were required to use "Highland Laddie" as their regimental march. Over time, many of these regiments had managed to return to their pre-Cardwell marches when, in March 2006, the establishment of the Royal Regiment of Scotland saw the disappearance of all Scotland's historic infantry regiments and their distinctions, including music, and the adoption of a new regimental march, "Scotland the Brave".