The Royal Regiment of Scotland (SCOTS) is the senior and only current Scottish line infantry regiment of the British Army Infantry. It consists of three regular and two reserve battalions, plus an incremental company, each formerly an individual regiment. However, three regular battalions maintain their former regimental pipes and drums to carry on the traditions of their antecedent regiments.

The British Army is listed according to an order of precedence for the purposes of parading. This is the order in which the various corps of the army parade, from right to left, with the unit at the extreme right being highest. Under ordinary circumstances, the Household Cavalry parades at the extreme right of the line. Militia and Army Reserve units take precedence after Regular units with the exception of The Honourable Artillery Company and The Royal Monmouthshire Royal Engineers.