The Infantry of the British Army comprises 49 infantry battalions, from 19 regiments. Of these, 33 battalions are part of the Regular army and the remaining 16 a part of the Army Reserve. The British Army's Infantry takes on a variety of roles, including armoured, mechanised, air assault and light.
The 36th (Ulster) Division was an infantry division of the British Army, part of Lord Kitchener's New Army, formed in September 1914. Originally called the Ulster Division, it was made up of mainly members of the Ulster Volunteer Force, who formed thirteen additional battalions for three existing regiments: the Royal Irish Fusiliers, the Royal Irish Rifles and the Royal Inniskilling Fusiliers. The division served from October 1915 on Western Front as a formation of the British Army during the Great War.
Fusilier is a name given to various kinds of soldiers; its meaning depends on the historical context. While fusilier is derived from the 17th-century French word fusil – meaning a type of flintlock musket – the term has been used in contrasting ways in different countries and at different times, including soldiers guarding artillery, various elite units, ordinary line infantry and other uses.
The hackle is a clipped plume or short spray of coloured feathers that is attached to a military headdress, with different colours being associated with particular regiments.
The Connaught Rangers was an Irish line infantry regiment of the British Army formed by the amalgamation of the 88th Regiment of Foot and the 94th Regiment of Foot in July 1881. Between the time of its formation and Irish independence, it was one of eight Irish regiments raised largely in Ireland. Its home depot was in Galway. It was disbanded following the establishment of the independent Irish Free State in 1922, along with the other five regiments that had their traditional recruiting grounds in the counties of the new state.
The Royal Irish Regiment is a light infantry regiment of the British Army. The regiment was founded in 1992 through the amalgamation of the Royal Irish Rangers and the Ulster Defence Regiment. Their oldest predecessor, the 27th Regiment of Foot, was first raised in June 1689 to fight in the Williamite War in Ireland. Other notable regiments in their lineage include the Royal Inniskilling Fusiliers, Royal Irish Rifles and the Royal Irish Fusiliers.
The 5th Royal Inniskilling Dragoon Guards was a cavalry regiment of the British Army formed in 1922 by the amalgamation of the 5th Dragoon Guards and the 6th (Inniskilling) Dragoons. It served in the Second World War and the Korean War. In August 1992, as a consequence of the Options for Change defence cuts, the regiment was amalgamated with the 4th/7th Royal Dragoon Guards to form the Royal Dragoon Guards.
The Royal Irish Rifles was an infantry rifle regiment of the British Army, first created in 1881 by the amalgamation of the 83rd Regiment of Foot and the 86th Regiment of Foot. The regiment saw service in the Second Boer War, the First World War, the Second World War, and the Korean War.
The Royal Inniskilling Fusiliers was an Irish line infantry regiment of the British Army in existence from 1881 until 1968. The regiment was formed in 1881 by the amalgamation of the 27th (Inniskilling) Regiment of Foot and the 108th Regiment of Foot.
The 19th Brigade is an Army Reserve formation of the British Army. As the 19th Infantry Brigade, it fought in the First and Second World War.
The caubeen is an Irish beret, originally worn by 16th-century Irish men. It has been adopted as the head dress of Irish regiments of Commonwealth armies.
The Irish military diaspora refers to the many people of either Irish birth or extraction who have served in overseas military forces, regardless of rank, duration of service, or success.
The North Irish Brigade was a Brigade of the British Army which existed between 1948 and 1968; it consisted of the three regiments from Northern Ireland. After the Second World War there were 14 infantry depots in the United Kingdom, each bearing a letter. The depots were territorially aligned, and Infantry Depot M at Omagh was aligned with the regiments from Northern Ireland.
The Royal Irish Fusiliers (Princess Victoria's) was an Irish line infantry (later changed to light infantry) regiment of the British Army, formed by the amalgamation of the 87th (Prince of Wales's Irish) Regiment of Foot and the 89th (Princess Victoria's) Regiment of Foot in 1881. The regiment's first title in 1881 was Princess Victoria's (Royal Irish Fusiliers), changed in 1920 to the Royal Irish Fusiliers (Princess Victoria's). Between the time of its formation and Irish independence, it was one of eight Irish regiments.
The 87th Regiment of Foot was an infantry regiment of the British Army, raised in 1793. Under the Childers Reforms it amalgamated with the 89th Regiment of Foot to form the Princess Victoria's in 1881.
The Prince of Wales's Leinster Regiment (Royal Canadians) was an infantry regiment of the line in the British Army, formed in 1881 by the amalgamation of the 100th (Prince of Wales's Royal Canadian) Regiment of Foot and the 109th Regiment of Foot (Bombay Infantry). The 100th Foot was first raised in 1858 and the 109th was first raised in 1853. Between the time of its formation and Irish independence, it was one of eight Irish regiments raised largely in Ireland, with its Birr Barracks home depot in Birr. It was disbanded with the Partition of Ireland following establishment of the independent Irish Free State in 1922 when the five regiments that had their traditional recruiting grounds in the counties of the new state were disbanded.
The 107th Brigade, later 107th (Ulster) Brigade was an infantry formation of the British Army which saw service in the First World War. The brigade was later reformed during the Cold War and finally disbanded in 2006, following the drawdown of Operation Banner.
A large regiment is a multi-battalion infantry formation of the British Army. First formed in the 1960s, large regiments are the result of the amalgamation of a number of existing single-battalion regiments, and perpetuate the traditions of each of the predecessor units.
United Kingdom 
British Army 
