British Army order of precedence

The majority of line cavalry regiments in the British Army now form part of a wider administrative formation called the Royal Armoured Corps, along with the Royal Tank Regiment. The two cavalry guards regiments are part of a separate administrative formation called the Household Cavalry.

^1 The 1st Life Guards, 2nd Life Guards and the Royal Horse Guards, were originally termed Horse Guards and given precedence over the Cavalry regiments of the Line. The 1st Royal Dragoons was a line regiment.
^2 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.
^3 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.
^4 The RTR (which was formed during the First World War) takes final place in the RAC order.

The infantry is ranked in the order of Foot Guards, Line infantry,⁵ Rifles. The Royal Marines, as the descendant of the old Army marine regiments of the 17th and 18th centuries, were included in the Order of Precedence after the descendant of the 49th Foot (the Royal Gloucestershire, Berkshire and Wiltshire Light Infantry (RGBWLI)), which was the last line regiment of foot formed prior to the formation of the Royal Marines, when not on parade with the Royal Navy. On the completion of the infantry reorganisation in 2007, the RGBWLI, along with the Devonshire and Dorset Light Infantry, the Light Infantry and the Royal Green Jackets, were absorbed into what has become part of The Rifles, and moved last in the Order of Precedence. As of April 2008 the Royal Marines are considered to no longer be a separate arm of the Royal Navy, but rather an integral part of it. Therefore, they no longer have a place amongst the (Army) infantry regiments and now take their place as part of the Royal Navy and parade on the right of the line. Even if there is no other Naval contingent present they are the senior formation on ceremonial occasions. If other contingents of the Royal Navy are on parade, the Royal Marines take their place after them, but before all army regiments and corps. ("The Royal Marines are no longer in the Army order of precedence, but now assume precedence within the Royal Navy at all times.")[1]

^5 The infantry order of precedence has several missing numbers, due to infantry regiments being disbanded:

• The Royal Irish Regiment (disbanded 1922) – 18th Regt of Foot
• The Cameronians (Scottish Rifles) (suspended animation 1968; disbanded 1987) – 26th, 90th Regts of Foot
• The York and Lancaster Regiment (suspended animation 1968; disbanded 1987) – 65th, 84th Regts of Foot
• The Connaught Rangers (disbanded 1922) – 88th, 94th Regts of Foot
• The Prince of Wales's Leinster Regiment (Royal Canadians) (disbanded 1922) – 100th, 109th Regts of Foot
• The Royal Munster Fusiliers (disbanded 1922) – 101st, 104th Regts of Foot
• The Royal Dublin Fusiliers (disbanded 1922) – 102nd, 103rd Regts of Foot

^6 Although the Grenadier Guards traces its formation to a date after both the Coldstream Guards and Scots Guards, it stands as the senior foot guards regiment by virtue of being on the English establishment in the service of the Crown for the longest. The Coldstream Guards formed part of the New Model Army until 1661, while the Scots Guards became part of the English Army in 1686.

^7 Up to 2006, five line infantry regiments had never been amalgamated in their entire history. In 2006 and 2007, these were amalgamated into large regiments under the planned reorganisation of the infantry:

• The Royal Scots (The Royal Regiment) – 1st Regt of Foot (now part of 1 SCOTS)
• The Green Howards (Alexandra, Princess of Wales's Own Yorkshire Regiment) – 19th Regt of Foot (now The Yorkshire Regiment)
• The 22nd (Cheshire) Regiment – 22nd Regt of Foot (now 1 MERCIAN)
• The Royal Welch Fusiliers – 23rd Regt of Foot (now 1 R WELSH)
• The King's Own Scottish Borderers – 25th Regt of Foot (now part of 1 SCOTS)

^8 Although The Rifles is descended from many numbered regiments, it is last in the order of precedence because the unnumbered regiment The Rifle Brigade has served longest as a rifle regiment. The Royal Gurkha Rifles comes before The Rifles because one of its predecessors (the 2nd Gurkha Rifles) entered service before the Rifle Brigade ceased using its old number (95th). As both the Royal Gurkha Rifles and The Rifles are rifle regiments they come last in the order of precedence. This is why the Parachute Regiment, which is classed as a line infantry regiment, comes above both.