British Army order of precedence

The regular army of 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.

In the British Army's Order of Precedence, the Household Cavalry is always listed first and always parades at the extreme right of the line. However, an exception is taken when the Royal Horse Artillery is with guns then it always is first to lead a parade.

RAC and infantry regiments of the British Army are listed in their own orders of precedence, which dates back to when regiments had numbers rather than names. The order comes from the start of the regiment's service under the Crown, up to 1881 and the "Cardwell Reforms", when the use of numbers was abolished in favour of linking with and using county names. The regiments of the Household Division are always listed first, as they are the most senior, followed by the line regiments. In today's army, which has many regiments formed through amalgamations of other regiments, the rank in the order of precedence is that of the more senior of the amalgamated units. It is for this reason that the Princess of Wales's Royal Regiment, one of the youngest in the army, is ranked second in the line infantry order – it is the direct descendant of the 2nd Regiment of Foot.

^1 In the sequence for Cavalry of the Line, Cavalry, consisting of Dragoon Guards, come first in the order of precedence with their own numbering sequence. Light Cavalry, consisting of Dragoons, Hussars and Lancers, have their own (single) sequence, hence 1st Dragoons, 3rd Hussars, 5th Lancers, 6th Dragoons, 8th Hussars, 9th Lancers, etc.
^2 Although one of the antecedent regiments of the Royal Lancers was the 5th Lancers, this regiment was formed in the 1850s, resurrecting the number of an old regiment and thus ranked in precedence after the 17th Lancers.
^3 The RTR (which was formed during the First World War) takes final place in the RAC order.

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