The Irish military diaspora refers to the many people of either Irish birth or extraction (see
Irish diaspora
The Irish diaspora ( ga, Diaspóra na nGael) refers to ethnic Irish people and their descendants who live outside the island of Ireland.
The phenomenon of migration from Ireland is recorded since the Early Middle Ages,Flechner and Meeder, The ...
) who have served in overseas
military forces, regardless of rank, duration of service, or success.
Many overseas military units were primarily made up of Irishmen (or members of the Irish military diaspora) and had the word 'Irish', an Irish place name or an Irish person in the unit's name. 'Irish' named military units took part in numerous conflicts throughout world history. The first military unit of this kind was in the
Spanish Netherlands during the
Eighty Years' War
The Eighty Years' War or Dutch Revolt ( nl, Nederlandse Opstand) ( c.1566/1568–1648) was an armed conflict in the Habsburg Netherlands between disparate groups of rebels and the Spanish government. The causes of the war included the Re ...
between Spain and the Dutch. A notable example is that of
Owen Roe O'Neill.
Australia and New Zealand
The British colonies of Australia and New Zealand suffered a series of 'war scares' during the 19th century from perceived threats from France and Russia. In 1870, when the last British troops left, defence became the responsibility of locally raised colonial forces.
New Zealand
Among the British fencibles (British army soldiers given land) in 1847 many of them were Irishmen. The first Irish unit formed was in New Zealand - the Christchurch Royal Irish Rifle Volunteers were gazetted on 18 November 1868, re-designated No. 2 (Royal Irish) Company Christchurch R.V. on 4 April 1871, and then disbanded on 11 August 1874.
On 29 April 1885, a meeting was held in Christchurch, New Zealand and 95 members of the Irish community applied to form an Irish volunteer corps. That was accepted on 30 April 1885 as the Canterbury Irish Rifle Volunteer
On 1 June 1892, they were amalgamated with the Sydenham R.V. to form the Christchurch City R.V., gazetted 22 July 1892.
New Zealand's Dunedin Irish R.V. were formed on 7 May 1885, when 189 men offered their services. The Dunedin Irish R.V. became part of the 1st Battalion Otago R.V. on 25 January 1886 and were disbanded on 13 September 1893.
One other Irish Corps was to be formed in the South Island of New Zealand, the Southland Irish R.V., were formed at Invercargill and accepted 10 June 1885 as an Honorary Corps. On 7 August 1885, it applied to be formed into a Garrison Corps and then disbanded on 9 July 1886.
Another N.Z. Irish corps was proposed during a 'war scare' in 1885, the Temuka Irish Rifles, on 13 June 1885, but the proposal was abandoned when the government deemed it improbable that hostilities would ensue.
Another Irish corps was proposed on 3 April 1887 and was accepted on 24 June as the Auckland Royal Irish R. V. On 13 August 1887, they were posted to the 3rd Battalion Auckland R.V. When inspected on 6 October 1889, they had a total strength of 93 officers and men and they were disbanded on 5 March 1892.
The last Irish Corps to be formed in New Zealand was the Irish R.V. (Wanganui), accepted 22 October 1901. They were attached to the 2nd Battalion Wellington (West Coast) R.V. and 'J' Company, formed 16 April 1902, becoming 'I' Company on 1 November 1904.
The N.Z. Defence Act of 1911 saw an end to the volunteer system, the Wanganui Irish (by then 'H' Company) were absorbed into the new territorial system when the 2nd Battalion Wellington (West Coast) R.V. were re-designated, 7th Regiment (Wellington West Coast Rifles) on 17 March 1911.
An Irish Caubeen was worn by the Nelson, Marlborough, and West Coast Regiment, which came about after a regimental alliance with the Royal Irish Fusiliers, which took place on 23 September 1949. The blue caubeen and green hackle of the Royal Irish Fusiliers were formally presented to the NMWC Regiment at a Barrosa Day parade in 1961 but may have been worn on special anniversaries and parades before that. On 24 January 1964, the Ist Battalion Nelson, Marlborough, and West Coast Regiment amalgamated into the 2nd Battalion (Canterbury, Nelson, Marlborough, West Coast) Royal New Zealand Infantry Regiment. N.Z. Army Headquarters ruled that only "A" and "B" Companies of the new regiment were to wear the caubeen and hackle on dates significant to the regiment. That was found to be unworkable and so the caubeen and hackle were not worn until 1968 when the ruling was changed. Only officers and warrant officers seem to have worn the caubeen during formal parades, and the RNZIR cedar green beret was worn for everyday use. By the early 1990s. all ranks were wearing the caubeen and hackle. On the formation of the Royal Irish Rangers in 1969, the green caubeen of the Irish Rangers was adopted by the New Zealanders. The 2RNZIR discontinued wearing the caubeen in the 1990s due to financial constraints, and it was replaced by the cedar green beret. In November 1998, the NZ mounted rifles "lemon-squeezer" hat was introduced army-wide and was worn for formal parades, while the beret was worn for everyday use. In 1999, the rifle green beret was adopted for the New Zealand army and was phased-in in late 2002. The 2nd (Canterbury, Nelson, Marlborough, West Coast) Battalion Group, as the unit was known then, wore the green hackle on the left side of the mounted rifle hat. That was to signify the continued association with the Royal Irish Regiment.
Australia (pre-Federation)
Queensland
An offer to form an Irish Corps in the British colony of
Queensland
)
, nickname = Sunshine State
, image_map = Queensland in Australia.svg
, map_caption = Location of Queensland in Australia
, subdivision_type = Country
, subdivision_name = Australia
, established_title = Before federation
, established_ ...
, Australia, had been rejected in 1862.
Eighteen years after the formation of the first Irish Corps in New Zealand, a Queensland Irish Volunteer Corps were proposed on 18 February 1887 and gazetted on 24 February 1887 as 'A' Company Queensland Irish Rifle Corps.
Established at Peel Street, South Brisbane with three officers and 100 other ranks, 'B' and 'C' companies quickly followed, formed on 11 March 1887 at Valley, North Brisbane and on 22 March 1887 at Petrie Terrace, West Brisbane.
'D' Company was formed at Gympie on 14 November 1888 with an establishment of three officers and 90 other ranks. The application to form this unit had been submitted on 27 May 1887. The application to form a company at Ipswich was submitted on 26 August 1889. They were gazetted on 4 September 1889 as 'E' Company and had a strength of three officers and 90 other ranks.
Gazetted the same day were 'F' Company established at
Woolloongabba
Woolloongabba is a suburb in the City of Brisbane, Queensland, Australia. In the , Woolloongabba had a population of 5,631 people.
Geography
Woolloongabba is located south of the CBD. It contains the Brisbane Cricket Ground ('the Gabba') and ...
, East Brisbane, with three officers and 90 other ranks.
The final company raised was 'G' Company at Maryborough and again with three officers and 90 other ranks, on 4 December 1889.
An application in March 1887, signed by over 100 men willing to form an Irish Corps at
Rockhampton
Rockhampton is a city in the Rockhampton Region of Central Queensland, Australia. The population of Rockhampton in June 2021 was 79,967, Estimated resident population, 30 June 2018. making it the fourth-largest city in the state outside of ...
came to nothing.
'G' Company at Maryborough was the first to disband on 6 August 1891, followed by 'D' Company at Gympie on 7 November 1894.
In a re-organisation during 1896, the Queensland Irish Volunteer Corps were designated 3rd (Queensland Irish) Battalion, Regiment of Queensland Rifles and 'A', 'B', 'C', 'E' and 'F' companies became 'I' ,'J', 'K', 'M', and 'N' companies. On 30 July 1897, 'I', 'K', and 'M' Companies were disbanded; 'L' and 'N' companies were disbanded by August the following year, and this brought to an end the Volunteer Corps in Queensland.
New South Wales
In November 1895, a meeting was held in Sydney Town Hall when it was decided to form an Irish Rifle Corps.
These companies were established and gazetted on 5 March 1896, as the New South Wales Irish Rifles. They were grouped together with St George Rifles and the Scottish Rifles to form an administrative regiment, designated the 5th (Union Volunteer) New South Wales Infantry Regiment on 20 June 1896. Another Irish company was formed in Sydney in 1998.
http://www.planetfigure.com/threads/australia-nsw-irish-rifle-regiment-1900.79431/
NSW Irish Rifles – belt-buckle
http://www.diggerhistory.info/pages-conflicts-periods/other/irish_rifle.htm
On 1 July 1899, these national companies split to form their own distinct regiments, and the Irish were re-designated as the 8th Union Volunteer Infantry Regiment (Irish Rifles).
Badges of the 8th Union Volunteers Infantry Regiment (Irish Rifles)
https://harrowercollection.com.au/33rd-infantry-regiment/
For administrative purposes, two non-Irish companies from the Illawarra district (one at Kogarah and one at Bulli) were attached.
A further Irish Company was formed at Newcastle, the men being sworn in during June 1900.
Twenty-three men of the 8th (Irish Rifles) fought in the Boer War.
The 8th Union Volunteers Infantry Regiment (Irish Rifles) was re-designated NSW Irish Rifle Regiment (Volunteers) in 1903, and then became the 1st Battalion NSW Irish Rifle Regiment in 1908.
A major re-organisation in 1912 saw the name change to 33rd Infantry Regiment and, in yet another re-organisation in 1918, changed to the 55th Battalion.
In 1927 the old NSW Irish Rifles title was revived. The 'Irish connection' finally came to an end in 1930, when the regiment was re-designated as the NSW Rifle Regiment.
NSW Irish Rifles
('Vice Regal' cigarette-card)
https://sites.google.com/site/irishregimentsoftheempire/australia-and-new-zealand
New South Wales Irish Rifles - hat badge variations
https://sites.google.com/site/irishregimentsoftheempire/australia-and-new-
South Australia
The South Australian Register, dated 13 February 1900, carried the following public notice: "A meeting of all interested in the formation of an Irish Rifle Corps will be held on Tuesday 20 February at 8pm in the town hall."
Afterwards 157 names of volunteers were taken, and after selection, were to become 'F' (Irish) Company, 1st Battalion Adelaide Rifles. At the formation of the Irish Company, it was suggested that a green uniform be worn, but no distinctive uniform was adopted. although a shamrock worked from black braid was worn on the uniform sleeves, and hand-engraved brass harp collar badges were worn. They were worn until January 1910, when the company was ordered to discontinue wearing them, which they did under protest. That was done to secure uniformity of dress with the other companies in the 10th AIR. A green stripe an inch wide was also approved to be worn on the trouser seams, but was later disallowed.
Victoria
Attempts had been made to form other Irish Corps. A five hundred strong Irish Australian Volunteer Corps was proposed in Melbourne Victoria in April 1885. A number of meetings were held at St. Patrick's Cathedral Hall.
Australia (post-Federation)
With the formation of the Australian Commonwealth military forces in 1903, the Adelaide Rifles became part of the newly formed 10th Australian Infantry Regiment. That had been the last Irish unit to be formed in Australia.
Steps were also taken in May 1901 and May 1910, to form an Irish Australian Regiment in Melbourne, and again in 1941. An Irish Volunteer Corps was proposed at a meeting held in the dining rooms of the Shamrock Hotel, in Perth Western Australia on 18 April 1900. Another Irish corps was proposed in Perth in 1904. An Irish regiment was suggested at Bendigo Victoria in April 1906, and a company of Irish Rifles was considered at Broken Hill NSW in April 1910. An Irish corps was also proposed in Queensland, as part of the 9th Australian Infantry Regiment (Moreton) in 1906. Committees were often appointed, but the corps were never formed.
The 4th Battalion, Royal Australian Regiment (4 RAR); an infantry battalion formed on 1 February 1964, and renamed the 2nd Commando Regiment on 19 June 2009. 4 R.A.R. is affiliated with Britain's 4th Regiment of Foot Guards (The Irish Guards). The 4 R.A.R. regimental band use the same uniform as the Pipes and Drums of the Irish Guards. The 4 R.A.R. battalion subsequently served in Malaysia as part of the Far East Strategic Reserve from August 1965 to September 1967, and seeing active service in Borneo against the Indonesian army during the Indonesia-Malaysia confrontation. The battalion began its first 12-month tour of Vietnam on 1 June 1968, returning to Vietnam for its second tour in May 1971. From 1990 to 1993 many individual soldiers from the battalion served with the United Nations in Cambodia. In 1993, soldiers from the battalion were detached for operational service in Somalia. In May 1993, the battalion deployed troops to Cambodia. In 1994, the battalion deployed Rwanda. In 1996, a decision was made to convert 4 RAR to a special forces unit. On 1 February 1997, was renamed to 4 RAR (Commando). The unit conducted operations in East Timor and Iraq, and later lost soldiers killed-in-action during the war in Afghanistan.
2/4 RAR Irish Pipes and Drums https://24rarassociation.com/?page_id=1076 (see image 66)
Austria and Austria-Hungary
The
Habsburgs were the principal employers of Irish soldiers in Central Europe. The multinational nature of the empire meant that gifted foreigners were always welcome and had opportunities not available in other Eastern and Central European countries. By one estimation, over 100 Irishmen were field marshals, generals, or admirals in the Austrian Army, with a corresponding number of men holding commissions in the lower ranks. The first Irishman of note to serve the Habsburgs was Colonel Richard Walsh of
Carrickmines, Dublin, who was mortally wounded at the
Battle of Lützen. His son Oliver became a Major-General. In all, eleven members of this family were field marshals or generals, the most notable being
George Olivier, count of Wallis.
Many Irishmen were ''
Inhaber'' and held rank as regimental colonels. Jacob Butler is the first of these. A Walter Butler was an ''Inhaber'' of a dragoon regiment and received praise for his role in the defence of
Frankfurt an der Oder. Butler was responsible for the assassination of the Bohemian general
Albrecht von Wallenstein
Albrecht Wenzel Eusebius von Wallenstein () (24 September 1583 – 25 February 1634), also von Waldstein ( cs, Albrecht Václav Eusebius z Valdštejna), was a Bohemian military leader and statesman who fought on the Catholic side during the T ...
, who was in the process of defecting to the Swedes.
Another Irishman to serve as field marshal was
Francis Taaffe, 3rd Earl of Carlingford. While attending the Jesuit college at
Olomouc
Olomouc (, , ; german: Olmütz; pl, Ołomuniec ; la, Olomucium or ''Iuliomontium'') is a city in the Czech Republic. It has about 99,000 inhabitants, and its larger urban zone has a population of about 384,000 inhabitants (2019).
Located on th ...
, he came to know
Charles V, Duke of Lorraine, and this benefited his career greatly. He played a prominent role in saving
Vienna
en, Viennese
, iso_code = AT-9
, registration_plate = W
, postal_code_type = Postal code
, postal_code =
, timezone = CET
, utc_offset = +1
, timezone_DST ...
in 1683 and in the subsequent conflict with the Turks. He later became a member of the Order of the Golden Fleece and served Charles V as his prime minister.

Baron Dermot Kavanagh († 1739) of
Ballyane,
County Wexford, served from his youth in the
Imperial Army and took part in campaigns in Hungary, Italy and Flanders. At the
imperial and royal
The phrase Imperial and Royal ( German: ''kaiserlich und königlich'', ), typically abbreviated as ''k. u. k.'', ''k. und k.'', ''k. & k.'' in German (the "und" is always spoken unabbreviated), ''cs. és k. (császári és királyi)'' in Hungar ...
court of Vienna he held the office of
''Kämmerer''. In 1723 he bought the manor of
Hauskirchen
Hauskirchen is a town in the district of Gänserndorf in the Austrian state of Lower Austria.
Geography
Hauskirchen lies in the northeast Weinviertel in Lower Austria 15 kilometers east of Mistelbach. The Zaya River runs through the municipality. ...
in
Lower Austria
Lower Austria (german: Niederösterreich; Austro-Bavarian: ''Niedaöstareich'', ''Niedaestareich'') is one of the nine states of Austria, located in the northeastern corner of the country. Since 1986, the capital of Lower Austria has been Sankt ...
from Prince Joseph von
Liechtenstein
Liechtenstein (), officially the Principality of Liechtenstein (german: link=no, Fürstentum Liechtenstein), is a German language, German-speaking microstate located in the Alps between Austria and Switzerland. Liechtenstein is a semi-constit ...
. From 1727 to 1734 he commanded the Czech Dragoon Regiment No. 7 while holding the rank of colonel. In 1734 he was promoted to
Generalfeldwachtmeister and the following year Kavanagh rose to the rank of
lieutenant field marshal. He died in 1739 of wounds received during the siege of Belgrade. Kavanagh and his wife Felicitas are commemorated by a monument with an inscription in the
parish church
A parish church (or parochial church) in Christianity is the church which acts as the religious centre of a parish. In many parts of the world, especially in rural areas, the parish church may play a significant role in community activitie ...
of St Lawrence at Hauskirchen, which names him in Latin as ''Dermitius
Freiherr
(; male, abbreviated as ), (; his wife, abbreviated as , literally "free lord" or "free lady") and (, his unmarried daughters and maiden aunts) are designations used as titles of nobility in the German-speaking areas of the Holy Roman Empire ...
von Kavanagh''.
Maximilian Ulysses Browne was of the first generation born in Austria but was from a prominent Limerick family. Through his mother, he was descended from the FitzGeralds,
Earls of Desmond
Earl of Desmond is a title in the peerage of Ireland () created four times. When the powerful Earl of Desmond took arms against Queen Elizabeth Tudor, around 1578, along with the King of Spain and the Pope, he was confiscated from his estates, ...
. Browne was a major-general by the age of 30. He rose to the rank of ''
Generalfeldmarschall
''Generalfeldmarschall'' (from Old High German ''marahscalc'', "marshal, stable master, groom"; en, general field marshal, field marshal general, or field marshal; ; often abbreviated to ''Feldmarschall'') was a rank in the armies of several ...
'' and died leading his men into battle during the
Battle of Prague. Browne was a kinsman and mentor to
Franz Moritz von Lacy (son of
Peter Lacy) who rose to be president of the ''
Hofkriegsrat'' from 1766 to 1774. Other famous Irish-Austrian generals included William O'Kelly from
Aughrim in Co. Galway; John Sigismund Maguire of Co. Kerry, who captured
Dresden
Dresden (, ; Upper Saxon: ''Dräsdn''; wen, label=Upper Sorbian, Drježdźany) is the capital city of the German state of Saxony and its second most populous city, after Leipzig. It is the 12th most populous city of Germany, the fourth ...
in 1758 and successfully defended it against
Frederick the Great
Frederick II (german: Friedrich II.; 24 January 171217 August 1786) was King in Prussia from 1740 until 1772, and King of Prussia from 1772 until his death in 1786. His most significant accomplishments include his military successes in the S ...
, who mentioned him on a number of occasions; and General
Karl O'Donnell, was known for his exceptional conduct at the
Battle of Torgau. Meanwhile, Colonel Hume Caldwell of Co. Fermanagh was noted for his conduct at
Breslau and
Olmütz, where he perished. Unusually, Caldwell was of Protestant origin. Field Marshal
Laval Nugent von Westmeath was prominent during the
Napoleonic Wars
The Napoleonic Wars (1803–1815) were a series of major global conflicts pitting the French Empire and its allies, led by Napoleon I, against a fluctuating array of European states formed into various coalitions. It produced a period of Fren ...
and was most noted for his role in the capture of Rome in 1815. In recognition of this,
Pope Pius VI
Pope Pius VI ( it, Pio VI; born Count Giovanni Angelo Braschi, 25 December 171729 August 1799) was head of the Catholic Church and ruler of the Papal States from 15 February 1775 to his death in August 1799.
Pius VI condemned the French Revoluti ...
made him a prince in 1816. There were no Irish regiments in the Austrian Army with influence confined to nobility serving as officers.

* Major
Peter Martyn
*
Franz Moritz Graf von Lacy
Franz Moritz Graf von Lacy ( en, Francis Maurice de Lacy; russian: Борис Петрович Ласси, Romanization of Russian, tr. ; 21 October 1725 – 24 November 1801) was a Baltic German-born Habsburg monarchy, Austrian military lead ...
*
Andreas Graf O'Reilly von Ballinlough
*
Maximilian Ulysses Graf von Browne
*
Laval Graf Nugent von Westmeath
*
Maximilian Graf O'Donnell von Tyrconnell
*
Gottfried Freiherr von Banfield
* General
Thomas Brady
* Captain
Art O' Laoghaire
Great Britain
A significant number of Irish people, of all backgrounds, have served in the forces of the British Crown over the centuries. By the end of the 18th century and the beginning of the 19th century, well over one-third of the military forces of the
British Army
The British Army is the principal land warfare force of the United Kingdom, a part of the British Armed Forces along with the Royal Navy and the Royal Air Force. , the British Army comprises 79,380 regular full-time personnel, 4,090 Gur ...
consisted of Irishmen and Anglo-Irish, because of:-
* the
Kingdom of Ireland electing, from the
Crown of Ireland Act 1542, to be in a
personal union
A personal union is the combination of two or more State (polity), states that have the same monarch while their boundaries, laws, and interests remain distinct. A real union, by contrast, would involve the constituent states being to some e ...
with:
**
House of Tudor
The House of Tudor was a royal house of largely Welsh and English origin that held the English throne from 1485 to 1603. They descended from the Tudors of Penmynydd and Catherine of France. Tudor monarchs ruled the Kingdom of England and i ...
** from the 1603
Union of the Crowns
The Union of the Crowns ( gd, Aonadh nan Crùintean; sco, Union o the Crouns) was the accession of James VI of Scotland to the throne of the Kingdom of England as James I and the practical unification of some functions (such as overseas dipl ...
, with the
House of Stuart
The House of Stuart, originally spelt Stewart, was a royal house of Scotland, England, Ireland and later Great Britain. The family name comes from the office of High Steward of Scotland, which had been held by the family progenitor Walter ...
, and from 1707 the Stuart
Kingdom of Great Britain
The Kingdom of Great Britain (officially Great Britain) was a sovereign country in Western Europe from 1 May 1707 to the end of 31 December 1800. The state was created by the 1706 Treaty of Union and ratified by the Acts of Union 1707, w ...
** from 1714 the
House of Hanover
* from
Irish House of Commons
The Irish House of Commons was the lower house of the Parliament of Ireland that existed from 1297 until 1800. The upper house was the House of Lords. The membership of the House of Commons was directly elected, but on a highly restrictive fr ...
approving the
acts of Union 1800
The Acts of Union 1800 (sometimes incorrectly referred to as a single 'Act of Union 1801') were parallel acts of the Parliament of Great Britain and the Parliament of Ireland which united the Kingdom of Great Britain and the Kingdom of Ire ...
, through the partitioning
Government of Ireland Act 1920
The Government of Ireland Act 1920 (10 & 11 Geo. 5 c. 67) was an Act of the Parliament of the United Kingdom. The Act's long title was "An Act to provide for the better government of Ireland"; it is also known as the Fourth Home Rule Bill ...
, and 1921
Anglo-Irish Treaty, Ireland was a constituent nation of the
United Kingdom of Great Britain and Ireland
The United Kingdom of Great Britain and Ireland was a sovereign state in the British Isles that existed between 1801 and 1922, when it included all of Ireland. It was established by the Acts of Union 1800, which merged the Kingdom of Gre ...
, with the North continuing as part of the
United Kingdom of Great Britain and Northern Ireland
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the European mainland, continental mainland. It comprises England, Scotlan ...
.
* the traditions of the
nobility
Nobility is a social class found in many societies that have an aristocracy (class), aristocracy. It is normally ranked immediately below Royal family, royalty. Nobility has often been an Estates of the realm, estate of the realm with many e ...
and
landed gentry
The landed gentry, or the ''gentry'', is a largely historical British social class of landowners who could live entirely from rental income, or at least had a country estate. While distinct from, and socially below, the British peerage, t ...
, which caused them to prefer military service to a career in trade (see:
Noblesse oblige)
* economic necessity
* ambition
* family tradition
Irishmen and Anglo-Irish with notable or outstanding overseas careers included:-
*
Major-General John Ardagh
*
Admiral Matthew Aylmer, 1st Baron Aylmer
*
Rear Admiral Francis Beaufort
*
William Blakeney, 1st Baron Blakeney
Lieutenant General William Blakeney, 1st Baron Blakeney, KB, 7 September 1672 to 20 September 1761, was an Irish-born officer who served in the British army from 1695 until 1756. From 1725 to 1757, he also sat in the Parliament of Ireland as M ...
*
Marshal of the Royal Air Force
Marshal of the Royal Air Force (MRAF) is the highest rank in the Royal Air Force (RAF). In peacetime it was granted to RAF officers in the appointment of Chief of the Defence Staff (CDS), and to retired Chiefs of the Air Staff (CAS), who were ...
Sir Dermot Boyle
*
Lieutenant-General
Lieutenant general (Lt Gen, LTG and similar) is a three-star military rank (NATO code OF-8) used in many countries. The rank traces its origins to the Middle Ages, where the title of lieutenant general was held by the second-in-command on the ...
Sir Edward Bulfin
*
Lieutenant-General Sir William Butler
*
Admiral of the Fleet Sir George Callaghan
*
Guy Carleton, 1st Baron Dorchester
*
Major General Sir George Colley
*
Lieutenant-General
Lieutenant general (Lt Gen, LTG and similar) is a three-star military rank (NATO code OF-8) used in many countries. The rank traces its origins to the Middle Ages, where the title of lieutenant general was held by the second-in-command on the ...
Sir Eyre Coote
*
Lieutenant-general
Lieutenant general (Lt Gen, LTG and similar) is a three-star military rank (NATO code OF-8) used in many countries. The rank traces its origins to the Middle Ages, where the title of lieutenant general was held by the second-in-command on the ...
Alan Cunningham
*
Andrew Cunningham, 1st Viscount Cunningham of Hyndhope
* Field Marshal Sir
John Dill
*
Major-General Beauchamp Doran
*
Eric Dorman-Smith
*
Major-General Lord Dugan
*
Paddy Finucane
*
Air Chief Marshal
Air chief marshal (Air Chf Mshl or ACM) is a high-ranking air officer originating from the Royal Air Force. The rank is used by air forces of many countries that have historical British influence. An air chief marshal is equivalent to an Adm ...
Sir Francis Fogarty
*
Field Marshal Viscount Gough
*
Rear-Admiral
Rear admiral is a senior naval flag officer rank, equivalent to a major general and air vice marshal and above that of a commodore and captain, but below that of a vice admiral. It is regarded as a two star " admiral" rank. It is often regar ...
James Macnamara
*
Walter Guinness, 1st Baron Moyne
*
Major General Sir Charles Gwynn
*
Francis Rawdon-Hastings, 1st Marquess of Hastings
*
Tom F. Hazell
Thomas Falcon Hazell & Bar (7 August 1892 – 4 September 1946) was a fighter pilot with the Royal Flying Corps, and later, the Royal Air Force during the First World War. Hazell scored 43 victories in 1917–18 making him the fifth most succe ...
*
Major General Sir William Hickie
*
Sir William Johnson, 1st Baronet
*
General Sir Garrett O'Moore Creagh VC
*
Brigadier General
Brigadier general or Brigade general is a military rank used in many countries. It is the lowest ranking general officer in some countries. The rank is usually above a colonel, and below a major general or divisional general. When appointed t ...
Richard Kane
*
Lieutenant-General Sir Thomas Kelly-Kenny
*
Field Marshal Lord Kitchener
*
Major General Louis Lipsett
*
Lieutenant General Henry Lyster VC
*
General Sir Bryan Mahon
*
Paddy Mayne
*
George McElroy
*
Lieutenant General Sir Charles MacMorrough Kavanagh
*
Field marshal
Field marshal (or field-marshal, abbreviated as FM) is the most senior military rank, ordinarily senior to the general officer ranks. Usually, it is the highest rank in an army and as such few persons are appointed to it. It is considered a ...
Richard Molesworth, 3rd Viscount Molesworth
Field Marshal Richard Molesworth, 3rd Viscount Molesworth, PC (Ire) FRS (1680 – 12 October 1758), styled The Honourable Richard Molesworth from 1716 to 1726, was an Anglo-Irish military officer, politician and nobleman. He served with his r ...
*
Admiral Sir Edmund Nagle
*
George Napier
*
Henry Napier
*
General Sir William Napier
*
Major General Luke O'Connor VC
*
Major-General Sir Joseph O'Halloran
*
Field Marshal James O'Hara
*
Major General David The O'Morchoe
*
Admiral Sir Robert Otway
*
Admiral of the Fleet Sir Frederick Richards
*
Admiral of the Fleet Sir John de Robeck
*
Major General Robert Ross
*
Admiral Sir Francis Tottenham
*
Field Marshal
Field marshal (or field-marshal, abbreviated as FM) is the most senior military rank, ordinarily senior to the general officer ranks. Usually, it is the highest rank in an army and as such few persons are appointed to it. It is considered a ...
George Wade
*
Admiral Sir Peter Warren
Admiral is one of the highest ranks in some navies. In the Commonwealth nations and the United States, a "full" admiral is equivalent to a "full" general in the army or the air force, and is above vice admiral and below admiral of the fleet ...
*
Field Marshal
Field marshal (or field-marshal, abbreviated as FM) is the most senior military rank, ordinarily senior to the general officer ranks. Usually, it is the highest rank in an army and as such few persons are appointed to it. It is considered a ...
The Duke of Wellington
*
Field Marshal Sir Henry Wilson MP
*
Field Marshal Lord Wolseley
Others were not born in Ireland, but were born into Irish families, such as:-
*
Field Marshal
Field marshal (or field-marshal, abbreviated as FM) is the most senior military rank, ordinarily senior to the general officer ranks. Usually, it is the highest rank in an army and as such few persons are appointed to it. It is considered a ...
Lord French
Field Marshal John Denton Pinkstone French, 1st Earl of Ypres, (28 September 1852 – 22 May 1925), known as Sir John French from 1901 to 1916, and as The Viscount French between 1916 and 1922, was a senior British Army officer. Born in Kent to ...
*
Field Marshal
Field marshal (or field-marshal, abbreviated as FM) is the most senior military rank, ordinarily senior to the general officer ranks. Usually, it is the highest rank in an army and as such few persons are appointed to it. It is considered a ...
Lord Alanbrooke
*
Field Marshal
Field marshal (or field-marshal, abbreviated as FM) is the most senior military rank, ordinarily senior to the general officer ranks. Usually, it is the highest rank in an army and as such few persons are appointed to it. It is considered a ...
Lord Alexander of Tunis
*
General Sir Miles Dempsey
*
Brigadier General George Grogan VC
*
Field Marshal Lord Gort VC
*
General Sir Charles John Stanley Gough VC
*
General Sir Hugh Henry Gough, VC
*
General Sir John Hackett
*
Field Marshal Lord Lambart
*
Lieutenant General Sir George Macdonogh
*
Admiral Sir Charles Madden
*
Colonel Henry McMahon
*
Field Marshal Lord Montgomery
Field Marshal Bernard Law Montgomery, 1st Viscount Montgomery of Alamein, (; 17 November 1887 – 24 March 1976), nicknamed "Monty", was a senior British Army officer who served in the First World War, the Irish War of Independence and th ...
*
General Sir Richard O'Connor
*
General Charles O'Hara
*
Major-General Richard Pope-Hennessy
*
General Sir Edward Quinan
*
Field Marshal Lord Roberts
Victoria Cross recipients:-
The
Victoria Cross
The Victoria Cross (VC) is the highest and most prestigious award of the British honours system. It is awarded for valour "in the presence of the enemy" to members of the British Armed Forces and may be awarded posthumously. It was previously ...
, the British Crown's highest award for military valour, has been awarded to 188 persons who were born in Ireland or had full Irish parentage. Of these thirty were awarded in the
Crimean War
The Crimean War, , was fought from October 1853 to February 1856 between Russia and an ultimately victorious alliance of the Ottoman Empire, France, the United Kingdom and Piedmont-Sardinia.
Geopolitical causes of the war included t ...
, 52 in the
Indian Mutiny
The Indian Rebellion of 1857 was a major uprising in India in 1857–58 against the rule of the British East India Company, which functioned as a sovereign power on behalf of the British Crown. The rebellion began on 10 May 1857 in the fo ...
, and 46 in numerous other
British Empire
The British Empire was composed of the dominions, colonies, protectorates, mandates, and other territories ruled or administered by the United Kingdom and its predecessor states. It began with the overseas possessions and trading post ...
campaigns between 1857 and 1914. In the 20th century, 37 Irish VCs were awarded in the
First World War
World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fig ...
, ten in the
Second World War
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...
. One has been awarded in Afghanistan in the 21st century to a Belfast-born soldier of the Parachute Regiment.
'Irish' named units of the British Army
* What is now the
Royal Northumberland Fusiliers
The Royal Northumberland Fusiliers was an infantry regiment of the British Army. Raised in 1674 as one of three 'English' units in the Dutch Anglo-Scots Brigade, it accompanied William III to England in the November 1688 Glorious Revolution an ...
was founded in 1674 as "The Irish Regiment"
* The
Volunteers of Ireland
The Volunteers of Ireland, also known as the 2nd American Regiment and the 105th Regiment of Foot, was a British Provincial military unit, raised for Loyalist service, during the American Revolutionary War, which was later added to the British ...
(1777–82), were renamed the 105th Regiment of Foot
*
The Catholic Irish Brigade (1794-1798)
*
4th Royal Irish Dragoon Guards, amalgamated 1922.
*
5th Royal Irish Lancers, disbanded in 1921, reconstituted and amalgamated in 1922.
*
6th (Inniskilling) Dragoons
*
8th King's Royal Irish Hussars, amalgamated 1958.
*
9th Queen's Royal Lancers, amalgamated with the
12th Royal Lancers to form the
9th/12th Royal Lancers in 1960.
*
9th/12th Royal Lancers, amalgamated with the
Queen's Royal Lancers to form the
Royal Lancers, which includes the
5th Royal Irish Lancers, on 2 May 2015
*
5th Royal Irish Lancers are represented in the new badge for the Royal Lancers regiment by the crossed lancers and the 'red' background colour in the regiment's tactical sign and shoulder patch
*
Queen's Royal Irish Hussars, created 1958, amalgamated 1993.
*
Queen's Royal Hussars (Queen's Own & Royal Irish). created 1993.
* the badge of the
Queen's Royal Hussars includes an Irish harp as its centre-piece, representing the regiment's heritage from the
8th King's Royal Irish Hussars
*
North Irish Horse
*
South Irish Horse
*
Irish Guards
("Who Shall Separate s")
, colors =
, identification_symbol_2 Saffron (pipes), identification_symbol_2_label = Tartan
, identification_symbol =
, identification_symbol_label = Tactical Recognition F ...

*
Royal Inniskilling Fusiliers
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 ...
, amalgamated 1968
*
Royal Irish Fusiliers, amalgamated 1968
*
Royal Ulster Rifles, amalgamated 1968
*
Royal Irish Rifles, renamed as Royal Ulster Rifles 1921.
*
Royal Irish Rangers, created 1968, amalgamated 1992
*
Royal Irish Regiment
*
Tyneside Irish Brigade, disbanded 1918.
*
London Irish Rifles, amalgamated 1992
*
Liverpool Irish.
*
Royal Irish Artillery, amalgamated 1801.
*
Ulster Defence Regiment, amalgamated 1992
*
135th (Limerick) Regiment of Foot The 135th (Limerick) Regiment of Foot was an infantry regiment of Fencibles in the British Army, created and promptly disbanded in 1796. The regiment, raised by Sir Vere Hunt
Sir Vere Hunt, 1st Baronet of Currah (1761 – 11 August 1818) was an ...
1796 (highest regimental number of any British line regiment.)
'Irish' named 1922 disbanded units of the British Army
Following the establishment of the independent
Irish Free State
The Irish Free State ( ga, Saorstát Éireann, , ; 6 December 192229 December 1937) was a State (polity), state established in December 1922 under the Anglo-Irish Treaty of December 1921. The treaty ended the three-year Irish War of Independ ...
in 1922, the six regiments that had their traditional recruiting grounds in the counties of the new state were all disbanded. On 12 June, five regimental
Colours were laid up in a ceremony at St George's Hall,
Windsor Castle
Windsor Castle is a royal residence at Windsor in the English county of Berkshire. It is strongly associated with the English and succeeding British royal family, and embodies almost a millennium of architectural history.
The original c ...
, in the presence of
HM King George V. (The
South Irish Horse had sent a Regimental engraving because the regiment chose to have its standard remain in
St. Patrick's Cathedral, Dublin). The six regiments finally disbanded on 31 July 1922 were:
*
Royal Irish Regiment, disbanded 1922
*
Connaught Rangers
The Connaught Rangers ("The Devil's Own") was an Irish line infantry regiment of the British Army formed by the amalgamation of the 88th Regiment of Foot (Connaught Rangers) (which formed the ''1st Battalion'') and the 94th Regiment of Foot (w ...
, disbanded 1922
*
Leinster Regiment
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 F ...
, disbanded 1922
*
Royal Munster Fusiliers, disbanded 1922
*
Royal Dublin Fusiliers
The Royal Dublin Fusiliers was an Irish infantry Regiment of the British Army created in 1881, one of eight Irish regiments raised and garrisoned in Ireland, with its home depot in Naas. The Regiment was created by the amalgamation of two Bri ...
, disbanded 1922
*
South Irish Horse, disbanded 1922
Many of the disbanded veterans were subsequently recruited into the Irish Free State's
National Army at the onset of the
Irish Civil War
The Irish Civil War ( ga, Cogadh Cathartha na hÉireann; 28 June 1922 – 24 May 1923) was a conflict that followed the Irish War of Independence and accompanied the establishment of the Irish Free State, an entity independent from the United ...
.
Canada
The Irish Regiment of Canada in the Second World War was the only Canadian Irish unit to fight in any war. It also perpetuates the active service of the 1st Canadian Machine Gun Battalion from the First World War and the indirect service of the 190th (Sportsmen) Battalion, Canadian Expeditionary Force, and the 208th (Canadian Irish) Battalion, CEF. Served as 1915 110th Irish Regiment; 1920 – The Irish Regiment; 1932 – The Irish Regiment of Canada; 1936 – The Irish Regiment of Canada (MG); 1940 – The Irish Regiment of Canada.
The Irish Fusiliers of Canada (Vancouver Regiment) perpetuated the First World War active service of the 29th (Vancouver) Battalion, CEF plus the indirect service of the 121st (Western Irish) Battalion, CEF and the 158th (Duke of Connaught's Own) Battalion, CEF. Served as 1913 – 11th Regiment, Irish Fusiliers of Canada; 1920 – The Irish Fusiliers of Canada; 1936 – The Irish Fusiliers of Canada (Vancouver Regiment); 1946 – 65th Light Anti-Aircraft Regiment (Irish Fusiliers); 1958 – The Irish Fusiliers of Canada (Vancouver Regiment); 1965 – placed on the
Supplementary Order of Battle; 2002 – amalgamated with
The British Columbia Regiment.
The Irish Canadian Rangers perpetuated the indirect service of the
199th Battalion Duchess of Connaught's Own Irish Rangers, CEF
The 199th (Duchess of Connaught's Own Irish Rangers) Battalion, CEF was a unit in the Canadian Expeditionary Force (CEF) during the First World War.
History
The battalion was founded by the CEF to improve their recruitment success by having an all ...
. Served as 1914 – 55th Irish Canadian Rangers; 1920 – The Irish Canadian Rangers; 1936 – disbanded.
The 218th (Edmonton Irish Guards) Battalion, CEF lacks perpetuation. The colonel had Irish ancestry, but the largest group of its men were recent eastern European immigrants from the fringes of the Austro-Hungarian Empire who spoke Ukrainian but would have had Austrian citizenship. This combined with the
211th (Alberta Americans) Battalion, CEF {{Use Canadian English, date=January 2023
The 211th Battalion, CEF was a unit in the Canadian Expeditionary Force during the First World War. Based in Vancouver
Vancouver ( ) is a major city in western Canada, located in the Lower Mainland r ...
, to form the 8th Battalion, Canadian Railway Troops, which served in France building and maintaining railroads.
'Irish' named units of the Canadian Army
*
The Irish Canadian Rangers
*
The Irish Fusiliers of Canada (The Vancouver Regiment)
*
The Princess Louise Fusiliers
The Princess Louise Fusiliers is a Primary Reserve light infantry regiment of the Canadian Armed Forces.
Lineage
File:Regimental Colour of the Princess Louise Fusiliers.jpg, Regimental Colour of the Princess Louise Fusiliers
File:Camp_Fla ...
. Although the word "Irish" does not appear in the unit name, the "PLF" are designated as an Irish regiment. The blue
Caubeen is an authorized headdress, and a grey hackle (inherited from the Royal Inniskilling Fusiliers) is worn with it and with the beret. Until relatively recently, officers also carried a blackthorn walking stick.
*
The Irish Regiment of Canada
*
121st (Western Irish) Battalion, CEF
The 121st (Western Irish) Battalion, CEF was a unit in the Canadian Expeditionary Force during the First World War. Based in New Westminster, British Columbia, the unit was authorized on 22 December 1915 and began recruiting in that city. After ...
*
199th (Duchess of Connaught's Own Irish Rangers) Battalion, CEF
The 199th (Duchess of Connaught's Own Irish Rangers) Battalion, CEF was a unit in the Canadian Expeditionary Force (CEF) during the First World War.
History
The battalion was founded by the CEF to improve their recruitment success by having an all ...
*
208th (Canadian Irish) Battalion, CEF {{Use Canadian English, date=January 2023
The 208th (Canadian Irish) Battalion, CEF was a unit in the Canadian Expeditionary Force during the First World War. Based in Toronto, Ontario, the unit began recruiting during the winter of 1915/16 in that ...
*
218th (Edmonton Irish Guards) Battalion, CEF
The 218th Battalion, CEF, was a unit in the Canadian Expeditionary Force during the First World War. Based in Edmonton, Alberta, the unit began recruiting in early 1916 in that city.
On October 11, 1916, soldiers from the 218th Battalion led an ...
France
The
Irish Brigade served the
Ancien Régime
''Ancien'' may refer to
* the French word for " ancient, old"
** Société des anciens textes français
* the French for "former, senior"
** Virelai ancien
** Ancien Régime
** Ancien Régime in France
{{disambig ...
from 1690 to 1792.

Notable Irishmen who served in the French military include
*
Patrice de Mac-Mahon, Duke of Magenta – General and
President of the Third Republic
The President of the French Republic was elected on an indirect basis during the Third Republic and Fourth Republic, as well as at the start of the Fifth Republic.
During the Third Republic and Fourth Republic, the officeholder was elected b ...
*
Thomas Arthur, comte de Lally
Thomas Arthur, comte de Lally, baron de Tollendal (13 January 17029 May 1766) was a French general of Irish Jacobite ancestry. Lally commanded French forces, including two battalions of his own red-coated Regiment of Lally of the Irish Brigade, ...
– General, commander in chief of the French Armies in India
*
Myles Byrne ((1780-1862),
Napoleon’s
Irish Legion
The Irish Legion (french: Légion irlandaise) was a light infantry regiment in service of the French Imperial Army established in 1803 for an anticipated invasion of Ireland. It was later expanded to a four battalions and a depot, the legion w ...
, retired under the
Bourbon Restoration ''
chef de bataillon.''
*
Arthur Dillon (1670–1733) – General
*
Arthur Dillon (1750–1794) – General and Royalist, victim of the
Reign of Terror
The Reign of Terror (french: link=no, la Terreur) was a period of the French Revolution when, following the creation of the First French Republic, First Republic, a series of massacres and numerous public Capital punishment, executions took pl ...
in 1794.
*
Arthur Dillon (1834–1922)
*
Henry Dillon – Colonel of the
Dillon Regiment
Dillon's Regiment ( French: ''Régiment de Dillon'') was first raised in Ireland in 1688 by Theobald, 7th Viscount Dillon, for the Jacobite side in the Williamite War. He was then killed at the Battle of Aughrim in 1691.
Williamite War
Dillon' ...
and apostate.
*
Théobald Dillon General, murdered by his own mutinous troops in 1792 cousin of
Arthur Dillon
*
Henri Jacques Guillaume Clarke – Marshal of France
*
Henri D'Alton
Henri is an Estonian, Finnish, French, German and Luxembourgish form of the masculine given name Henry (given name), Henry.
People with this given name
; French noblemen
:'' See the 'List_of_rulers_named_Henry#France, List of rulers named Henry ...
– General
*
Arthur O'Connor - General of Division under Napoleon
*
Charles Edward Jennings de Kilmaine
General Charles Edward Saul Jennings (19 October 1751 – 11 December 1799), also referred to as Brave Kilmaine, was an Irish soldier in the service of France and a revolutionary. He was committed to the cause of Irish independence and an ac ...
*
Edward Stack – General
*
Jean Louis Barthélemy O'Donnell - Comte O'Donnell
'Irish' named units of the French Army
Kingdom of France
The Kingdom of France ( fro, Reaume de France; frm, Royaulme de France; french: link=yes, Royaume de France) is the historiographical name or umbrella term given to various political entities of France in the medieval and early modern period ...
*
Irish Brigade
**
Régiment de Albemarle (1698–1703) (renamed Régiment de Fitzgerald)
** Régiment de Athlone
** Régiment de Berwick (1698–1775) (to
Régiment de Clare
The Clare's Regiment, later known as Clare's Dragoons, was initially named O'Brien's Regiment after its originator Daniel O'Brien, 3rd Viscount Clare raised a mounted dragoon regiment during the Jacobite war. When Clare's Dragoons left Limeric ...
)
***2nd Battalion (1703–1715) (to 1st Battalion and Régiment de Roth)
** Régiment de Botagh
** Régiment de Bourke (1698–1715) (renamed Régiment de Wauchop)
** Régiment de Bulkeley
** Régiment de Butler (1689–1690)
** Régiment de Charlemont
**
Régiment de Clare
The Clare's Regiment, later known as Clare's Dragoons, was initially named O'Brien's Regiment after its originator Daniel O'Brien, 3rd Viscount Clare raised a mounted dragoon regiment during the Jacobite war. When Clare's Dragoons left Limeric ...
** Régiment de Clancarty
**
Régiment de Dillon (1698–1733) (renamed Régiment de Lee)
**
Régiment de Dorrington (1698– ) (renamed Régiment de Roth)
** Régiment de Dublin
** Régiment de
Feilding
Feilding ( mi, Aorangi) is a town in the Manawatū District of the North Island of New Zealand. It is located on State Highway 54, 20 kilometres north of Palmerston North. The town is the seat of the Manawatū District Council.
Feilding has ...
(1689–1690)
** Régiment de Fitzgerald (1703–1708) (renamed Régiment de O'Donnell)
** Régiment de Fitzgorman
** Régiment de Galmoy (1698–1715) (to Régiment de Dillon)
** Régiment de Lally
** Régiment de Lee (1733– )
** Régiment de Limerick
** Régiment de Mountcashel (1698– ) (renamed Régiment de Lee)
** Régiment de MacElligott
** Régiment de O'Brien
** Régiment de O'Donnell (1708–1715) (to Régiment de Clare)
** Régiment de Roscommon
** Régiment de Roth (or Rooth) (renamed Régiment de Walsh)
** Régiment de Walsh (renamed from Régiment de Roth)
** Régiment de Wauchop (1715) (to Spain)
** Fitzjame's Horse
** Galmoy's Horse
** Kilmallock's Dragoons
** O'Gara's Dragoons
** Nugent's Horse (renamed Fitzjames' Horse)
** Sheldon's Horse (1698– ) (renamed Nigent's Horse)
First French Empire
The First French Empire, officially the French Republic, then the French Empire (; Latin: ) after 1809, also known as Napoleonic France, was the empire ruled by Napoleon Bonaparte, who established French hegemony over much of continental ...
*
Irish Legion
The Irish Legion (french: Légion irlandaise) was a light infantry regiment in service of the French Imperial Army established in 1803 for an anticipated invasion of Ireland. It was later expanded to a four battalions and a depot, the legion w ...
(1803–1815)
Germany
Bavaria
During the
War of the Spanish Succession
The War of the Spanish Succession was a European great power conflict that took place from 1701 to 1714. The death of childless Charles II of Spain in November 1700 led to a struggle for control of the Spanish Empire between his heirs, Phili ...
Irishmen formed 8% of the Bavarian officer corps. The Elector of Bavaria,
Maximilian, was also governor of Spanish Netherlands and nominated Irish officers to Walloon regiments.
Unified Germany
*
Baron George Von Scheffler,
Gardes du Corps (Prussia) 1914–18
In the
First World War
World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fig ...
,
Imperial Germany
The German Empire (), Herbert Tuttle wrote in September 1881 that the term "Reich" does not literally connote an empire as has been commonly assumed by English-speaking people. The term literally denotes an empire – particularly a hereditar ...
tried with the help of
Roger Casement
Roger David Casement ( ga, Ruairí Dáithí Mac Easmainn; 1 September 1864 – 3 August 1916), known as Sir Roger Casement, Companion of the Order of St Michael and St George, CMG, between 1911 and 1916, was a diplomat and Irish people, Irish I ...
to recruit an
"Irish Brigade" from Irish-born
prisoners of war
A prisoner of war (POW) is a person who is held Captivity, captive by a belligerent power during or immediately after an armed conflict. The earliest recorded usage of the phrase "prisoner of war" dates back to 1610.
Belligerents hold priso ...
who had served in the British Army. By 1916 only 52 men had volunteered, and the plan was abandoned.
In the
Second World War
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...
an even smaller number volunteered to join the
Wehrmacht
The ''Wehrmacht'' (, ) were the unified armed forces of Nazi Germany from 1935 to 1945. It consisted of the ''Heer'' (army), the ''Kriegsmarine'' (navy) and the ''Luftwaffe'' (air force). The designation "''Wehrmacht''" replaced the previou ...
of
Nazi Germany
Nazi Germany (lit. "National Socialist State"), ' (lit. "Nazi State") for short; also ' (lit. "National Socialist Germany") (officially known as the German Reich from 1933 until 1943, and the Greater German Reich from 1943 to 1945) was ...
and were trained at
Friesack Camp. Separately some
IRA sympathisers
planned certain operations with the
Abwehr
The ''Abwehr'' ( German for ''resistance'' or ''defence'', but the word usually means ''counterintelligence'' in a military context; ) was the German military-intelligence service for the '' Reichswehr'' and the ''Wehrmacht'' from 1920 to 1944. ...
that were generally unsuccessful.
Latin America
Events
*
Spanish American wars of independence (1811–26)
*
Irish and German Mercenary Soldiers' Revolt – Brazil 1828
*
USA intervention in Mexico (1846–48)
People
*
William Aylmer– Aide-de-camp to
Mariano Montilla in
Venezuela
Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in ...
*
John Blossett- led the second
British Legion
The Royal British Legion (RBL), formerly the British Legion, is a British charity providing financial, social and emotional support to members and veterans of the British Armed Forces, their families and dependants, as well as all others in ne ...
to aid
Simon Bolivar
Simon may refer to:
People
* Simon (given name), including a list of people and fictional characters with the given name Simon
* Simon (surname), including a list of people with the surname Simon
* Eugène Simon, French naturalist and the genus ...
in the wars of independence against Spain.
*
William Brown (admiral) – "Father of the Argentine Navy"
*
Peter (Pedro) Campbell – Founder of the Uruguayan Navy (see
Pedro Campbell for detailed information.)
*
John Deveroux
John is a common English name and surname:
* John (given name)
* John (surname)
John may also refer to:
New Testament
Works
* Gospel of John, a title often shortened to John
* First Epistle of John, often shortened to 1 John
* Second E ...
– Commander of Irish Legion in Venezuela and New Granada.
*
Antonio Donovan (1849–1897) – General in
Argentina
Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, t ...
(text in Spanish)
* William Ferguson (1800–1828) – Aide-de-camp to General
Simon Bolívar, involved in the struggle for independence of Venezuela, New Granada and Peru. On 28 September 1828 at Santafe de Bogotá, Ferguson was mistaken by conspirators for Bolívar, and shot in the back and mortally wounded while walking down the street. Honoured with a public funeral his remains were buried at the cathedral of Bogotá, an unusual honour for a Protestant.
*
– Argentinian-Irish descent. Revolutionary in
Cuba
Cuba ( , ), officially the Republic of Cuba ( es, República de Cuba, links=no ), is an island country comprising the island of Cuba, as well as Isla de la Juventud and several minor archipelagos. Cuba is located where the northern Caribbea ...
*
Rupert Hand
Rupert may refer to:
People
* Rupert (name), various people known by the given name or surname "Rupert"
Places Canada
*Rupert, Quebec, a village
*Rupert Bay, a large bay located on the south-east shore of James Bay
*Rupert River, Quebec
*Rupert' ...
– Cavalry colonel that assassinated general
José María Córdova
José María Córdova Muñoz, also known as the ''"Hero of Ayacucho"'', was a General of the Colombian army during the Independence War of Colombia, Perú, and Bolivia from Spain.
Biographic data
Córdova was born in Concepción, Antioquia ...
. Governor of El Choco (Colombia)
*
Juan MacKenna – Founder of the Military Corps of Engineers of the Chilean Army.
*
Juan Garland – military engineer in the service of Spain and active in Chile.
*
William Lamport – nicknamed El Zorro, The Fox, due to his exploits in Mexico
*
Patrick Lynch – Capitán de Milicias in Río de la Plata
*
Estanislao Lynch – Argentine officer in the
Army of the Andes
*
Patricio Lynch – Admiral of the Chilean navy
*
Joseph Mires
Joseph is a common male given name, derived from the Hebrew Yosef (יוֹסֵף). "Joseph" is used, along with "Josef", mostly in English, French and partially German languages. This spelling is also found as a variant in the languages of the mo ...
- mathematician that founded the math Academy of Caracas (1808) as captain of the Regiment of the Queen, but soon turned to the cause of Venezuelan Patriots. As aid de camp of Marshal Antonio José de Sucre he will face battles, prison and exile until to be fired in Guayaquil, Ecuador, in 1829.
*
Santiago Mariño Fitzgerald – Venezuelan born of an Irish mother descent, aide de camp to Simón Bolívar in Venezuela
*
José Trinidad Morán- Venezuelan military man of an Irish father descent. Obtained Peruvian nationality for his services rendered in the war of independence. Participated in the liberation campaigns of Ecuador, Peru and Bolivia
*
John Thomond O'Brien
John Thomond O'Brien (1786–1861), also known in Spanish language, Spanish as Juan Thomond O'Brien, was an Argentine Army officer born in 1786 in Baltinglass, Co. Wicklow, son of Martin O'Brien dynasty, O'Brien and Honoria O'Conor, O'Connor. He ...
– Aide-de-camp to general
José de San Martín
José Francisco de San Martín y Matorras (25 February 177817 August 1850), known simply as José de San Martín () or '' the Liberator of Argentina, Chile and Peru'', was an Argentine general and the primary leader of the southern and cent ...
.
*
Jorge O'Brien
Jorge is a Spanish and Portuguese given name. It is derived from the Greek name Γεώργιος ('' Georgios'') via Latin ''Georgius''; the former is derived from (''georgos''), meaning "farmer" or "earth-worker".
The Latin form ''Georgius'' ...
– Captain of the Chilean Navy during the
Chilean War of Independence.
*
Francis O'Connor – officer in the Irish Legion of
Simon Bolivar
Simon may refer to:
People
* Simon (given name), including a list of people and fictional characters with the given name Simon
* Simon (surname), including a list of people with the surname Simon
* Eugène Simon, French naturalist and the genus ...
, Aide de camp to
Antonio Jose de Sucre
Antonio is a masculine given name of Etruscan origin deriving from the root name Antonius. It is a common name among Romance language-speaking populations as well as the Balkans and Lusophone Africa. It has been among the top 400 most popular male ...
in Peru, Minister of War in
Bolivia
, image_flag = Bandera de Bolivia (Estado).svg
, flag_alt = Horizontal tricolor (red, yellow, and green from top to bottom) with the coat of arms of Bolivia in the center
, flag_alt2 = 7 × 7 square p ...
.
*
Morgan O'Connell– Aide-de-camp to general Simon Bolivar in
Venezuela
Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in ...
*
Hugh O'Conor- Military governor of northern Mexico.
*
Demetrio O'Daly (general) – Puerto Rican delegate to the Spanish Cortes
*
Ambrosio O'Higgins – Colonial administrator and military governor of Chile (1788–1796), father of Bernardo O'Higgins
*
Bernardo O'Higgins – First Chilean head of state (Supreme Director, 1817–23), commanded the forces that won independence from Spain.
*
Daniel Florencio O'Leary – aide de camp to
Simón Bolívar
Simón José Antonio de la Santísima Trinidad Bolívar y Palacios (24 July 1783 – 17 December 1830) was a Venezuelan military and political leader who led what are currently the countries of Colombia, Venezuela, Ecuador, Peru, Panama and ...
in Venezuela
*
Alexander O'Reilly – General, "Father of the Puerto Rican Militia"
*
Robert Otway – Materially supported the
Independence of Brazil
*
Robert Piggot – First irish commander of
1st Venezuelan Rifles of Bolivar Army
*
John Riley Comandante of the
Saint Patrick's Battalion in the
American-Mexican War
*
James Rooke James Rooke or Rook may refer to:
* James Rooke (British Army general) (1742–1805), English general and politician
* James Rooke (British Legion officer) (1770–1819), British soldier in the Napoleonic wars
* James Rook (rowing) (born 1997), Au ...
– at command of
British Legions was seriously wounded in the
Battle of Vargas Swamp (Colombia)
*
Arthur Sandes – Second irish commander of
1st Venezuelan Rifles of Bolivar Army
*
James Towers English – Irish commander of British Legions forces in the Spanish American wars of independence.
*
Pedro Dartnell – Descendant of irish, Commander-in-Chief of the Chilean Army. President of the Provisional Government Junta of 1925
'Irish' named units in Latin America
*
1st Regiment Venezuelan Rifles – Irish regiment that took part in the
Venezuelan War of Independence
The Venezuelan War of Independence ( es, Guerra de Independencia de Venezuela, links=no, 1810–1823) was one of the Spanish American wars of independence of the early nineteenth century, when independence movements in Latin America fought aga ...
.
*
Saint Patrick's Battalion – Irish American battalion that deserted and fought for Mexico in the
Mexican–American War
The Mexican–American War, also known in the United States as the Mexican War and in Mexico as the (''United States intervention in Mexico''), was an armed conflict between the United States and Second Federal Republic of Mexico, Mexico f ...
Papal States
The Irish that went to fight for the Papal States were not professional soldiers but an entirely voluntary force (a few were members of Cork Constabulary) that was raised with a sole purpose, to defend
Pope Pius IX. By 1860 the ability of foreign countries to recruit in Ireland and Great Britain was frowned upon but still technically possible. It wouldn't be outlawed for another ten years with the
Foreign Enlistment Act
The Foreign Enlistment Act 1870 (33 & 34 Vict c 90) is an Act of Parliament, Act of the Parliament of the United Kingdom that seeks to regulate mercenary activities of British citizens.
It received royal assent on 9 August 1870.
Background
Ther ...
. Despite being promised that they would serve in a single brigade they were scattered among other brigades with men from other European Catholic countries. They were poorly clothed and equipped but fought with gallantry. The first battle they played a part in was
Perugia
Perugia (, , ; lat, Perusia) is the capital city of Umbria in central Italy, crossed by the River Tiber, and of the province of Perugia.
The city is located about north of Rome and southeast of Florence. It covers a high hilltop and par ...
where after most of the Papal force surrendered the Irish continued to fight. The next battle where the Irish fought was
Spoleto. 300 Irish volunteers under
Myles O'Reilly held off 2,500 veteran Piedmontese, including
Victor Emmanuel's elite light infantry the
Bersaglieri for fourteen hours including vicious hand-to-hand fighting.
The next significant engagement was the
Battle of Castelfidardo where 150 Irishmen fought. The war ended shortly after this when the outnumbered and out-equipped Papal army was ordered by Pius to lay down their arms.
Apart from
Myles O'Reilly this was the first military experience of
Myles Keogh who later on fought with distinction during the US Civil War and after in the
United States Cavalry
The United States Cavalry, or U.S. Cavalry, was the designation of the mounted force of the United States Army by an act of Congress on 3 August 1861.Price (1883) p. 103, 104 This act converted the U.S. Army's two regiments of dragoons, one r ...
until he fell at the
Battle of Little Bighorn in 1876.
Portugal
Kingdom of Portugal
The Kingdom of Portugal ( la, Regnum Portugalliae, pt, Reino de Portugal) was a monarchy in the western Iberian Peninsula and the predecessor of the modern Portuguese Republic. Existing to various extents between 1139 and 1910, it was also kn ...
* Marshal
William Beresford, 1st Viscount Beresford; head of the Portuguese army from 1809 to 1820.
Russia
The most recognised and outstanding Irishman to serve in the Russian Army was
Peter Lacy from
Bruff, County Limerick, who died in 1751 while governor of Livonia. Lacy's daughter married another Irish man from Limerick,
General George Browne who became a Russian general and their son
Johann Georg von Browne also rose to the rank of general in Russia. Count John O'Rourke was a prominent military theorist during the time of Catherine the Great. O'Rourke and his brother Cornelius joined the Russian Army. Cornelius married a niece of
Lacy
Lacy may refer to any of the following:
People Surname
* Alan J. Lacy (born 1953), American businessman
* Antonio Lacy (born 1957), Spanish doctor and surgeon
* Arthur J. Lacy (1876–1975), American politician and lawyer
* Benjamin W. Lacy (1 ...
. John O'Rourke's son
Joseph Cornelius O'Rourke rose to the rank of lieutenant general during the Napoleonic period. Another prominent descendant
Eduard Alexander Ladislaus Graf (Count) O'Rourke became the bishop of Gdańsk in the inter-war years and died an exile in Rome in 1943.
*
Field Marshal Count Peter von Lacy
Sweden
Irish military involvement in the Swedish army was neither happy nor successful. At the beginning of the seventeenth century about 6,000 men were shipped out of Ulster for the security of the plantation and sent to Sweden. They were especially unhappy fighting for a Lutheran power. Some Irish
friar
A friar is a member of one of the mendicant orders founded in the twelfth or thirteenth century; the term distinguishes the mendicants' itinerant apostolic character, exercised broadly under the jurisdiction of a superior general, from the o ...
s disguised themselves as soldiers and moved among the men encouraging them to desert to Catholic powers. The men then left Swedish service and most joined the army of Poland. After this incident
Gustavus Adolphus
Gustavus Adolphus (9 December N.S 19 December">Old_Style_and_New_Style_dates.html" ;"title="/nowiki>Old Style and New Style dates">N.S 19 December15946 November Old Style and New Style dates">N.S 16 November] 1632), also known in English as G ...
refused to accept any large scale recruitment of Irishmen considering them untrustworthy. However a small number went to serve in the officer corps. The most prominent of these was
Hugh Hamilton, 1st Viscount of Glenawly. Two of his nephews also entered Swedish service.
South Africa
Some Irish fought in British ranks in various colonial wars. Some Irish were also among the 1820 settlers, a famous example is the Rorke family whose descendants went on to set up Rorkes Drift.
Battle of Rorkes Drift
Disbanded 'Irish' named units in South Africa
*
Cape Town Irish Volunteer Rifles
The Cape Town Irish Volunteer Rifles were a volunteer part-time military unit, which existed for a few years in late Victorian South Africa.
The unit was formed in Cape Town in 1885, in response to fears of a war between the United Kingdom and R ...
*
Irish Boer commandos
** Irish Transvaal Brigade
** 2nd Irish Brigade
'Irish' named units in South Africa
*
South African Irish Regiment Formed in 1914
Spain

The first major military exodus of Irishmen to Spain happened after the failure of the
Second Desmond Rebellion in 1583. At least 200 Irish were part of the
Armada
Armada is the Spanish and Portuguese word for naval fleet, which also adopted into English, Malay and Indonesian for the same meaning, or an adjective meaning 'armed'; Armáda () is the Czech and Slovak word for armed forces.
Armada may also refe ...
in 1588. About the same time, in 1587, 600 Irishmen under the command of
Sir William Stanley sent to aid the Dutch in their war with Spain switched sides with their commander and served Spain.
The next great exodus of Irishmen to serve in the armies occurred after the
Siege of Kinsale. An Irish regiment was formed in 1605 and Colonel
Henry O'Neill was placed at its head. Five other Irish regiments were formed between 1632 and 1646 and were placed under the command of
The Earl of Tyrconnell,
Owen Roe O'Neill,
Thomas Preston, Patrick FitzGerald and John Murphy. Later they were joined by Irishmen who had served in the army of
Henri de Bourbon and
Charles IV. The difficulties that plagued them at home were carried to the continent when O'Donnells refused to serve under O'Neills and tension existed between the Old English and the Old Irish. This was especially evident in tensions between O'Neill and Preston.
After the
Cromwellian conquest of Ireland
The Cromwellian conquest of Ireland or Cromwellian war in Ireland (1649–1653) was the re-conquest of Ireland by the forces of the English Parliament, led by Oliver Cromwell, during the Wars of the Three Kingdoms. Cromwell invaded Ireland w ...
there was a fresh exodus of men which suited the English as it ensured that men of fighting age would be engaged in wars on the continent. In one incident in 1653 during the Siege of
Girona
Girona (officially and in Catalan , Spanish: ''Gerona'' ) is a city in northern Catalonia, Spain, at the confluence of the Ter, Onyar, Galligants, and Güell rivers. The city had an official population of 103,369 in 2020. Girona is the capit ...
(
Principality of Catalonia) some of the Irish defenders deserted and joined the French under
de Bellefonds. With the restoration of
Charles II in 1660 most of the remaining Irish chose to return to Ireland. Two regiments remained under the command of the O'Neills and
Hugh Balldearg O'Donnell.
With the
War of Succession
A war of succession is a war prompted by a succession crisis in which two or more individuals claim the right of successor to a deceased or deposed monarch. The rivals are typically supported by factions within the royal court. Foreign p ...
in 1701 Irish regiments were reformed mostly via France. Two
dragoon regiments were formed and named after their founders, O'Mahony (1703) and Crofton (1705). Four infantry regiments were formed between 1702 and 1718 while a fifth transferred from French service in 1715. They were named:
*Regimento de Infantería de Hibernia (1705– )
*Regimento de Infantería de Irlanda (1702– )
*Regimento de Infantería de Limerick (1718– )
*Regimento de Infantería de Ultonia (Ulster) (1718– )
*Regimento de Infantería de Wauchop (1715– )
*Regimento de Infantería de Waterford (1718– )
There was a certain amount of reorganisation, so the Regimento de Infantería de Waterford became the second battalion of Irlanda in 1733. When
Charles, Duke of Parma (future Charles II) became King of Naples and Sicily he took Regimento de Infantería de Limerick with him into Neapolitan service, where it was known as Regimento del Rey. The remaining regiments remained in Spanish service and wore red uniforms until 1802, when they changed to light blue in common with the remainder of the Spanish army.
*
Donal Cam O'Sullivan Beare
*
Hugh Dubh O'Neill
*
Shane O'Neill (son of Hugh)
Shane O'Neill, 3rd Earl of Tyrone (also known as Seán and, in Spain, Juan, c. 1599 – 29 January 1641) was the youngest son of Hugh O'Neill, Earl of Tyrone.
Early life
He left Ireland with his father and The 1st Earl of Tyrconnell during t ...
*
Field Marshal Alejandro O'Reilly
*
Juan O'Donojú
Juan de O'Donojú y O'Ryan (, 30 July 1762 – 8 October 1821) was a Spanish-Irish military officer, diplomat and " Jefe Político Superior" ("viceroy") of New Spain from 21 July 1821 to 28 September 1821 during the Mexican War of Independen ...
*
Joaquín Blake y Joyes
Joaquín or Joaquin is a male given name, the Spanish version of Joachim.
Given name
* Joaquín (footballer, born 1956), Spanish football midfielder
* Joaquín (footballer, born 1981), Spanish football winger
* Joaquín (footballer, born 198 ...
*
Ricardo Wall
Richard Wall y Devereux (5 November 1694 – 26 December 1777) was a Spanish-Irish cavalry officer, diplomat and minister who rose in Spanish royal service to become Chief Minister. He is usually referred to as Ricardo Wall.
Early life
Wall be ...
*
Leopoldo O'Donnell y Jorris
*
Carlos Luis O'Donnell y Jorris
Carlos may refer to:
Places
;Canada
* Carlos, Alberta, a locality
;United States
* Carlos, Indiana, an unincorporated community
* Carlos, Maryland, a place in Allegany County
* Carlos, Minnesota, a small city
* Carlos, West Virginia
;Elsewhere ...
*
Ambrosio O'Higgins
*
Charles Wogan
Spanish Civil War (1936–1939)
*
Frank Ryan
*
Eoin O'Duffy
Eoin O'Duffy (born Owen Duffy; 28 January 1890 – 30 November 1944) was an Irish military commander, police commissioner and politician. O'Duffy was the leader of the Monaghan Brigade of the Irish Republican Army (IRA) and a prominent figure ...
*
Irish Brigade (Spanish Civil War)
*
Irish Socialist Volunteers
United States

Irish have been fighting in the United States and British North America all the way back to the mid 1600s mostly in Virginia, Pennsylvania, and the Carolinas. Florence O’Sullivan a captain who was an early settler in South Carolina who was involved in much of the fighting against the Spanish and natives
Sullivans Island
Sullivan's Island is a town and island in Charleston County, South Carolina, United States, at the entrance to Charleston Harbor, with a population of 1,791 at the 2010 census. The town is part of the Charleston metropolitan area, and is conside ...
.
In the 1700s Irish surnames could be found on various colonial American records especially in Provincial military units that contained large amounts of troops born in Ireland even Washington's force at the battle of fort necessity the muster roll is found online. An example being frontiersman
Samuel Brady. And earlier
Thomas Dongan. Irish involvement only heightened with the American revolution and later in the mid 1800s when most of the Irish immigrants came to the United States.
*
Hercules Mooney
*
Daniel Sullivan
*
Edward Hand
*
Thomas hickey
*
Jeremiah O’Brien
Captain Jeremiah O'Brien (1744–1818) was an Irish-American captain in the Massachusetts State Navy. Prior to its existence (or that of the Continental Navy), he commanded the sloop ''Unity'' when he captured the British armed schooner in ...
*
Timothy Murphy (sniper)
*
John Sullivan (general)
John Sullivan (February 17, 1740 – January 23, 1795) was an American general in the Revolutionary War winning several key battles most notably the Delaware crossing. He was a delegate in the Continental Congress where he signed the Continent ...
revolutionary war general
*
Richard Butler (general)
*
Stephen Watts Kearny
*
Thomas MacDonough
*
John Coffee
*
Presley Neville O’Bannon
*
Michael Corcoran, General in the Union Army
*
Thomas Francis Meagher
Thomas Francis Meagher (; 3 August 18231 July 1867) was an Irish nationalist and leader of the Young Irelanders in the Rebellion of 1848. After being convicted of sedition, he was first sentenced to death, but received transportation for life ...
*
Commodore John Barry "Father of the American Navy"
*
Myles Walter Keogh
Myles Walter Keogh (25 March 1840 – 25 June 1876) was an Irish people, Irish soldier. He served in the armies of the Papal States during the war for Italian unification in 1860, and was recruited into the Union Army during the American Civil ...
*
Edward Stack
*
Richard Montgomery
*
Philip Sheridan
*
James Shields (Brig. Gen. USA) Planned defeat of General
Thomas "Stonewall" Jackson at
Kernstown in 1862
Confederate States of America
*
William M. Browne
*
Patrick Cleburne
*
Richard W. Dowling
*
Joseph Finegan
*
James Hagan (Confederate colonel)
James Hagan (June 17, 1822 – November 6, 1901) was a United States Army captain during the Mexican–American War and a Confederate States Army colonel during the American Civil War (Civil War). He was a prosperous businessman and planter at M ...
*
Walter P. Lane
Walter Paye Lane (February 18, 1817 – January 28, 1892) was a Confederate general during the American Civil War who also served in the armies of the Republic of Texas and the United States of America.
Early life
Lane was born in County Cork, Ir ...
*
Patrick T. Moore
Patrick Theodore Moore (September 22, 1821 – February 19, 1883) was an Irish-born Confederate States Army brigadier general during the American Civil War. As colonel leading the 1st Virginia Infantry Regiment, he was severely wounded at the B ...
*
John Mitchel
'Irish' named units in the United States
Many of these units have their origins from the participation of
Irish-Americans in the American Civil War.
:''Incomplete''
American Revolution
The American Revolution was an ideological and political revolution that occurred in British America between 1765 and 1791. The Americans in the Thirteen Colonies formed independent states that defeated the British in the American Revolu ...
Loyalists
** Loyal Irish Volunteers
** 2nd American Regiment (
Volunteers of Ireland
The Volunteers of Ireland, also known as the 2nd American Regiment and the 105th Regiment of Foot, was a British Provincial military unit, raised for Loyalist service, during the American Revolutionary War, which was later added to the British ...
) later the 105th Regiment of Foot (British Army)
*
John Connolly
American Civil War
The American Civil War (April 12, 1861 – May 26, 1865; also known by other names) was a civil war in the United States. It was fought between the Union ("the North") and the Confederacy ("the South"), the latter formed by state ...
Union Army
During the American Civil War, the Union Army, also known as the Federal Army and the Northern Army, referring to the United States Army, was the land force that fought to preserve the Union of the collective states. It proved essential to th ...
*
69th Pennsylvania Infantry (formerly 2nd California) ("The Rock of Erin")
*
9th Connecticut Infantry
The 9th Connecticut Infantry Regiment was a volunteer infantry regiment in the Union Army during the American Civil War. It was established in September 1861 as an Irish regiment, composed mainly of soldiers born in Ireland or first generati ...
* 7th Missouri Volunteer Infantry
*
8th Missouri Volunteer Infantry
*
9th Massachusetts Volunteer Infantry
*
10th Ohio Volunteer Infantry
*
10th Tennessee Volunteer Infantry (formerly 1st Middle Tennessee Volunteer Infantry)
* 23rd Illinois Volunteer Infantry
*
28th Massachusetts Infantry
* 30th Missouri Volunteer Infantry
*
35th Indiana Volunteer Infantry ("1st Irish")
* 37th New York Volunteer Infantry ("The Irish Rifles")
* 42nd New York Volunteer Infantry ("Tammany Jackson Guard")
*
63rd New York Volunteer Infantry
*
69th New York Volunteer Infantry ("Fighting 69th"). Currently an
Army National Guard
The Army National Guard (ARNG), in conjunction with the Air National Guard, is an organized Militia (United States), militia force and a Reserve components of the United States Armed Forces, federal military reserve force of the United States A ...
battalion that maintains Irish traditions
*
88th New York Volunteer Infantry
* 99th New York Volunteer Infantry
* 116th Pennsylvania Volunteer Infantry
*
164th New York Volunteer Infantry ("Corcoran's Irish Zouaves")
*
Irish Brigade (US)
Confederate Army
The Confederate States Army, also called the Confederate Army or the Southern Army, was the military land force of the Confederate States of America (commonly referred to as the Confederacy) during the American Civil War (1861–1865), fighti ...
*
1st Irish Battalion, Virginia Infantry Regulars
* 2nd Tennessee Volunteer Infantry ("Irish")
* 6th Louisiana Volunteer Infantry ("Irish Brigade")
* 9th Georgia Cavalry
* 10th Tennessee Volunteer Infantry ("Sons of Erin")
*
Louisiana Tigers
Louisiana Tigers was the common nickname for certain infantry troops from the State of Louisiana in the Confederate army during the American Civil War. Originally applied to a specific company, the nickname expanded to a battalion, then to a br ...
* Company E, 33rd Virginia Infantry, Stonewall Brigade ("Emerald Guards")
* McMillan Guards, Company K, 24th Georgia Infantry
* Jeff Davis Guard, Company F, 1st Texas Heavy Artillery
* Company I,
8th Alabama Volunteer Infantry ("Emerald Guards")
*
Cobb's Legion
Cobb's Legion (also known as the Georgia Legion) was an American Civil War unit that was raised on the Confederate side from the State of Georgia by Thomas Reade Rootes Cobb during the summer of 1861. A "legion" consisted of a single integrat ...
(Georgia Legion)
*Company D, 18th Arkansas Infantry Regiment, Marmaduke's ("The Shamrock Guards")
Modern era
* Admiral
William M. Callaghan
William McCombe Callaghan (August 8, 1897 – July 8, 1991) was a United States Navy officer who served as the first captain of the battleship Fowler, G. (1991)William M. Callaghan dies at 93; headed Logistics Service for Navy ''New York Ti ...
*
Michael Mullen
Michael Glenn Mullen (born October 4, 1946) is a retired United States Navy admiral, who served as the 17th chairman of the Joint Chiefs of Staff from October 1, 2007, to September 30, 2011.
Mullen previously served as the Navy's 28th chief of ...
,
Chairman of the Joint Chiefs of Staff
The chairman of the Joint Chiefs of Staff (CJCS) is the presiding officer of the United States Joint Chiefs of Staff (JCS). The chairman is the highest-ranking and most senior military officer in the United States Armed Forces Chairman: a ...
2007-11
*
Martin Dempsey
Martin “Marty” Edward Dempsey (born March 14, 1952), is a retired United States Army general who served as the 18th chairman of the Joint Chiefs of Staff from October 1, 2011 until September 25, 2015. He previously served as the 37th chief o ...
,
Chairman of the Joint Chiefs of Staff
The chairman of the Joint Chiefs of Staff (CJCS) is the presiding officer of the United States Joint Chiefs of Staff (JCS). The chairman is the highest-ranking and most senior military officer in the United States Armed Forces Chairman: a ...
2011-15
See also
*
Flight of the Wild Geese
*
Foreign enlistment in the American Civil War
*
Loyalist (American Revolution)
Loyalists were colonists in the Thirteen Colonies who remained loyal to the British Crown during the American Revolutionary War, often referred to as Tories, Royalists or King's Men at the time. They were opposed by the Patriots, who supporte ...
Notes
{{DEFAULTSORT:Irish Military Diaspora
Irish diaspora
American Civil War
American Revolutionary War
Confederate States Army soldiers
Expatriate military units and formations
Military history of the American Civil War
Social history of the American Civil War
Irish regiments of the British Army
Irish regiments of the United States Army
Irish regiments in European armies
Irish regiments in French service
War scare