Royal Arcerion Regiment

The Royal Arcerion Regiment is the senior line infantry regiment of the Arcer Army's Royal Arcerion Infantry Corps. It consists of seven battalions, of which two are reserve, each of which forms its own individual regiment. Both Reserve Battalions have their own distinct regimental colours and honours, as they carry the lineage of two deactivated/antecedent regiments. The modern Regiment has undergone several changes and amalgamations, but has existed in its current structure since the late 1990s. It shares the joint honour of the oldest Regiment in the Arcer Army with the Royal Moorden Regiment, from their shared lineage to the Arcerion Loyal Militia, however the Royal Arcerion Regiment received its Regimental colours and status from the Ardmori Crown first.

The Regiment's battalions form the central elements of 1 Rifle Brigade and part of 4 Mechanized Brigade.

Regimental Museum
The Royal Arcerion Regiment Museum is located in Dalfearn, and is a tourist attraction that annually draws 250,000 visitors. It has trophies, photos, videos, and donated artifacts from the Regiments 200+ year history and is managed by the RAR Association. It has exhibits for children and adults, as well as a walk of remembrance up to the "Rifleman's Monument," which is dedicated to all the fallen members of the Regiment from founding until the modern era.

The Regimental Colours are housed in the museum, and removed and used by the Regimental Headquarters for ceremonial events. The museum has a planned expansion estimated to cost £2.4 million Arcer Pounds, and is scheduled to be completed in 2030. This will include the creation of a museum rugby pitch, as well as the construction of a vehicle hall for the light and armoured vehicles as well as heavy weapons, used throughout the Regiment's history.

Regimental Motto
The Regimental Motto of "Hold the Line" pays homage to the Battle of Easthampton during the Second Bush War. The Regiment defended the Easthampton suburb of McCaffery, for which RHQ's barracks is named, and the quote was spawned from a letter, now stored in the Regimental Museum, between officers of the Regiment. Captain Fergus MacIntyre, then A/OC (acting Officer Commanding) of C Company, 1st Battalion, had sent correspondence via runner on the sixth day of Indigenous onslaughts on their positions, informing Commanding Officer of the Easthampton Garrison, Sir Timothy O'Brien, that his company was low on ammunition, and had fixed bayonets, and requested guidance as if to withdraw to a more defensible position or wait for reinforcement and resupply. O'Brien, mortally wounded earlier that morning by an Indigenous marksman, penned "Hold the Line," and his initials as he had not enough strength for further orders.

C Company would hold for the remainder of the day, and the letter was kept by MacIntyre, where it eventually replaced the older Regimental Motto of "For Arcerion," in a vote by the members of the Regiment to commemorate their defiant stand at Easthampton.

Structure
With the restructuring of the Regiment in the 1990s to accommodate the inclusion of new Regiments, the Battalions and Companies were renamed to reflect the honours and heritage associated with their new units. The current structure as of 2026 is as follows: 1st-7th Battalions, Royal Arcerion Regiment The 1st, 2nd, and 3rd Battalions operate in the mechanised role as part of their respective Brigade groups. Following the 2022 Confederate Memo on Defence, the 1st-3rd Battalions will remain in this role but receive additional vehicles and equipment to create more versatile battlegroups. 1st, 2nd, and 3rd Battalions are headquartered at the McCaffery Barracks in Dalfearn, with the Regimental Headquarters.
 * A Company
 * B Company
 * C Company
 * D Company
 * Weapons Company

The 4th Battalion also operates in the mechanised configuration, however it is displaced and garrisoned in Presdale at Essex Lines, Arcerion Maneuver Training Centre.

The 5th, 6th, and 7th Battalions operate in the Light Mechanised role, and are based along the southern Arcer coast in Moorden Governorate. As part of the 2022 Confederate Memo on Defence these battalions will receive an additional company of troops to be augmented from the Army Reserve. 7th Battalion also maintains a ceremonial contingent to assist the Kinnaird Grenadiers and Kinnaird Grenadier Guards with state visits and other important events.

8th Battalion, Royal Arcerion Regiment 9th Battalion, Royal Arcerion Regiment The 8th and 9th Battalions are Reserve Infantry serving as light infantry, and can be called up by an Act of Parliament to augment the Regular Army.
 * W Company (Kurst Regiment)
 * X Company (Moorden Lowland Rifles)
 * Y Company (Chester Foot Regiment)
 * Z Company (Moorden Highland Regiment)

Uniform and Dress
The Royal Arcerion Regiment has adopted a number of uniform styles and patterns over their years. Throughout it all, there have been several items and accoutrements that have remained consistent.

Cap Badge and Motto
Since the adoption of "Hold the Line" after the Second Great War, the Regiment's rifle-green berets have been emblazoned with the Ardmori Lion, with script underneath with the Regimental Motto. Officers are entitled to gold insignia, and non-commissioned officers and other ranks silver. During modern conflicts such as the Second Great War, the cap badge has often been sewn onto field caps and head dress for tactical reasons to reduce the shine and visibility. Even with the dissolution of the Ardmori Royal Family and the Ardmori Crown Regent, the Regiment still retains the Ardmori Royal Crown over its cap badge, surmounting it as part of Arcerion's heritage as the last bastion of Royal Ardmore.

Dress
The Regiment's daily dress is combat fatigues, or for officers and staff NCOs, the dress of the day is their Army Service dress. The Regiment has several types of dress and distinct markings. The Regimental colours are Orange and Green, and when in their full ceremonial dress, sometimes referred to as 'Scarlets,' members of the RAR wear red coats with Green facings. The Regiment, as a note to its past as a dismounted rifle regiment, has all officers and NCOs continue to wear dress boots, unlike other Regiments where Officers and NCOs wear dress shoes. The RAR also maintains a summer uniform, in the traditional brown style of Army Service Dress. Each Battalion also has its own distinct dress differences. The mechanised infantrymen of the Regiment have collardogs that show a Lion Rampant, whereas their dismounted infantry battalions have a Lion Passant.

Battalion Nicknames
Three of the RAR Battalions have nicknames, based off of historical engagements and battle honours. The 1st Battalion was named after the regiment's engagement's in Ardmore. 1st Battalion 'Taernsby' was named for the Regiment's defense of the small port town that allowed for the evacuation of Arco soldiers and Ardmori civilians during the Ardmori Civil War. The 4th Battalion is named after the engagement at Yulin, during the invasion of the Cape in the Second Great War.

Traditions
The Regiment has a number of traditions and historical duties that it undertakes as part of daily duties to both commemorate past events, build esprit de corps, as well as honour fallen comrades and build comradeship with other units. The most notable and public of these is their participation in the Arcer national sport of rugby. The Regiment has its own internal rugby tournament annually amongst each of the three battalions, the winner awarded the Kilinmuir Trophy, named after the Regiment's actions during the Ardmori Civil War. The winner of the Regimental rugby tournament then goes on to compete in an annual tournament against the Royal Moorden Regiment. The winner of the tournament is bestowed the honour of being the 'Senior Regiment' in the Arcer Army, as both claim equal heritage to the title due to their common lineage back to the Arcerion Loyal Militia. The Senior Regimental Rugby Tournament was first organized in 1902 as a means to maintain morale when both Regiments were co-located in a bivouac during the Third Bush War. In the century that has followed, the RAR has won 2/3rds of the games, being the most recent champion for the past six years.

Mascot
The Regimental Mascot is Leo, a golden retriever dog. Laws in Arcerion concerning the ethical and safe treatment of animals prohibit the keeping of a lion, so Leo is often given a Lion's Mane for Regimental events and ceremonies, such as Mess Dinners or State Visits. The current Leo is the 9th dog to hold the title, and they are usually retired after 5-6 years of service with the Regiment, and adoptions of former mascots are highly competitive amongst members of the RAR.

Regimental Alliances
Burg

Urc

Popular Culture
The following is a non-exhaustive list of the Regiment's appearances in media:
 * The Royal Arcerion Regiment was featured in popular culture in the TV series "The Frontier," which aired episodes for a TV drama about the settlement of Arcerion.
 * The RAR mascot is featured regularly at sporting events at high schools and universities in Dalfearn.