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The Irish Civil War (; 28 June 1922 – 24 May 1923) was a conflict that followed the
Irish War of Independence The Irish War of Independence (), also known as the Anglo-Irish War, was a guerrilla war fought in Ireland from 1919 to 1921 between the Irish Republican Army (1919–1922), Irish Republican Army (IRA, the army of the Irish Republic) and Unite ...
and accompanied the establishment of the
Irish Free State The Irish Free State (6 December 192229 December 1937), also known by its Irish-language, Irish name ( , ), was a State (polity), state established in December 1922 under the Anglo-Irish Treaty of December 1921. The treaty ended the three-ye ...
, an entity independent from the
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...
but within the
British Empire The British Empire comprised the dominions, Crown colony, colonies, protectorates, League of Nations mandate, mandates, and other Dependent territory, territories ruled or administered by the United Kingdom and its predecessor states. It bega ...
. The civil war was waged between the Provisional Government of Ireland and the Anti-Treaty IRA over the
Anglo-Irish Treaty The 1921 Anglo-Irish Treaty (), commonly known in Ireland as The Treaty and officially the Articles of Agreement for a Treaty Between Great Britain and Ireland, was an agreement between the government of the United Kingdom of Great Britain an ...
. The Provisional Government (that became the Free State in December 1922) supported the terms of the treaty, while the anti-Treaty opposition saw it as a betrayal of the
Irish Republic The Irish Republic ( or ) was a Revolutionary republic, revolutionary state that Irish Declaration of Independence, declared its independence from the United Kingdom of Great Britain and Ireland in January 1919. The Republic claimed jurisdict ...
proclaimed during the
Easter Rising The Easter Rising (), also known as the Easter Rebellion, was an armed insurrection in Ireland during Easter Week in April 1916. The Rising was launched by Irish republicans against British rule in Ireland with the aim of establishing an ind ...
of 1916. Many of the combatants had fought together against the British in the
Irish Republican Army The Irish Republican Army (IRA) is a name used by various Resistance movement, resistance organisations in Ireland throughout the 20th and 21st centuries. Organisations by this name have been dominantly Catholic and dedicated to anti-imperiali ...
during the War of Independence and had divided after that conflict ended and the treaty negotiations began. The Civil War was won by the pro-treaty National Army, who first secured Dublin by early July, then went on the offensive against the anti-Treaty strongholds of the south and west, especially the ' Munster Republic'. All urban centres had been captured by the National Army by late August. The guerrilla phase of the Irish Civil War lasted another 10 months, before the IRA leadership issued a "dump arms" order to all units, effectively ending the conflict. The National Army benefited from substantial quantities of weapons provided by the British government, particularly artillery and armoured cars. The conflict left Irish society divided and embittered for generations. Today, the three largest
political parties A political party is an organization that coordinates candidates to compete in a particular area's elections. It is common for the members of a party to hold similar ideas about politics, and parties may promote specific ideological or p ...
in
Ireland Ireland (, ; ; Ulster Scots dialect, Ulster-Scots: ) is an island in the North Atlantic Ocean, in Northwestern Europe. Geopolitically, the island is divided between the Republic of Ireland (officially Names of the Irish state, named Irelan ...
are direct descendants of the opposing sides in the war:
Fine Gael Fine Gael ( ; ; ) is a centre-right, liberal-conservative, Christian democratic political party in Ireland. Fine Gael is currently the third-largest party in the Republic of Ireland in terms of members of Dáil Éireann. The party had a member ...
, from the supporters of the pro-Treaty side;
Fianna Fáil Fianna Fáil ( ; ; meaning "Soldiers of Destiny" or "Warriors of Fál"), officially Fianna Fáil â€“ The Republican Party (), is a centre to centre-right political party in Ireland. Founded as a republican party in 1926 by Éamon de ...
, the party formed from the bulk of the anti-Treaty republicans by
Éamon de Valera Éamon de Valera (; ; first registered as George de Valero; changed some time before 1901 to Edward de Valera; 14 October 1882 – 29 August 1975) was an American-born Irish statesman and political leader. He served as the 3rd President of Ire ...
; and
Sinn Féin Sinn Féin ( ; ; ) is an Irish republican and democratic socialist political party active in both the Republic of Ireland and Northern Ireland. The History of Sinn Féin, original Sinn Féin organisation was founded in 1905 by Arthur Griffit ...
, comprising the minority of anti-Treaty republicans who refused to join any partitionist party.


Background


The treaty and its consequences

The
Anglo-Irish Treaty The 1921 Anglo-Irish Treaty (), commonly known in Ireland as The Treaty and officially the Articles of Agreement for a Treaty Between Great Britain and Ireland, was an agreement between the government of the United Kingdom of Great Britain an ...
was agreed upon to end the 1919–1921
Irish War of Independence The Irish War of Independence (), also known as the Anglo-Irish War, was a guerrilla war fought in Ireland from 1919 to 1921 between the Irish Republican Army (1919–1922), Irish Republican Army (IRA, the army of the Irish Republic) and Unite ...
between the
Irish Republic The Irish Republic ( or ) was a Revolutionary republic, revolutionary state that Irish Declaration of Independence, declared its independence from the United Kingdom of Great Britain and Ireland in January 1919. The Republic claimed jurisdict ...
and the
United Kingdom of Great Britain and Ireland The United Kingdom of Great Britain and Ireland was the union of the Kingdom of Great Britain and the Kingdom of Ireland into one sovereign state, established by the Acts of Union 1800, Acts of Union in 1801. It continued in this form until ...
. The treaty provided for a self-governing Irish state, having its own army and police. The Treaty also allowed
Northern Ireland Northern Ireland ( ; ) is a Countries of the United Kingdom, part of the United Kingdom in the north-east of the island of Ireland. It has been #Descriptions, variously described as a country, province or region. Northern Ireland shares Repub ...
(the six north-eastern counties
Fermanagh Historically, Fermanagh (), as opposed to the modern County Fermanagh, was a kingdom of Gaelic Ireland, associated geographically with present-day County Fermanagh. ''Fir Manach'' originally referred to a distinct kin group of alleged Laigin or ...
, Antrim, Tyrone, Londonderry,
Armagh Armagh ( ; , , " Macha's height") is a city and the county town of County Armagh, in Northern Ireland, as well as a civil parish. It is the ecclesiastical capital of Ireland â€“ the seat of the Archbishops of Armagh, the Primates of All ...
and Down where collectively the majority population was of the
Protestant Protestantism is a branch of Christianity that emphasizes Justification (theology), justification of sinners Sola fide, through faith alone, the teaching that Salvation in Christianity, salvation comes by unmerited Grace in Christianity, divin ...
religion) to opt out of the new state and return to the United Kingdomwhich it did immediately. With the
Partition of Ireland The Partition of Ireland () was the process by which the Government of the United Kingdom of Great Britain and Ireland (UK) divided Ireland into two self-governing polities: Northern Ireland and Southern Ireland (the area today known as the R ...
a two-year period of communal conflict took place within the newly formed Northern Ireland. Rather than creating the independent
republic A republic, based on the Latin phrase ''res publica'' ('public affair' or 'people's affair'), is a State (polity), state in which Power (social and political), political power rests with the public (people), typically through their Representat ...
for which nationalists had fought, the Irish Free State would be a
dominion A dominion was any of several largely self-governance, self-governing countries of the British Empire, once known collectively as the ''British Commonwealth of Nations''. Progressing from colonies, their degrees of self-governing colony, colon ...
of the
British Empire The British Empire comprised the dominions, Crown colony, colonies, protectorates, League of Nations mandate, mandates, and other Dependent territory, territories ruled or administered by the United Kingdom and its predecessor states. It bega ...
with the
British monarch The monarchy of the United Kingdom, commonly referred to as the British monarchy, is the form of government used by the United Kingdom by which a hereditary monarch reigns as the head of state, with their powers regulated by the British con ...
as
head of state A head of state is the public persona of a sovereign state.#Foakes, Foakes, pp. 110–11 " he head of statebeing an embodiment of the State itself or representative of its international persona." The name given to the office of head of sta ...
, in the same manner as
Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
and
Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...
. The British suggested dominion status in secret correspondence even before treaty negotiations began, but
Sinn Féin Sinn Féin ( ; ; ) is an Irish republican and democratic socialist political party active in both the Republic of Ireland and Northern Ireland. The History of Sinn Féin, original Sinn Féin organisation was founded in 1905 by Arthur Griffit ...
leader
Éamon de Valera Éamon de Valera (; ; first registered as George de Valero; changed some time before 1901 to Edward de Valera; 14 October 1882 – 29 August 1975) was an American-born Irish statesman and political leader. He served as the 3rd President of Ire ...
rejected the dominion. The treaty also stipulated that members of the new Irish
Oireachtas The Oireachtas ( ; ), sometimes referred to as Oireachtas Éireann, is the Bicameralism, bicameral parliament of Republic of Ireland, Ireland. The Oireachtas consists of the president of Ireland and the two houses of the Oireachtas (): a house ...
(parliament) would have to take the following "
Oath of Allegiance An oath of allegiance is an oath whereby a subject or citizen acknowledges a duty of allegiance and swears loyalty to a monarch or a country. In modern republics, oaths are sworn to the country in general, or to the country's constitution. For ...
": This oath was highly objectionable to many Irish Republicans. Furthermore, the
partition of Ireland The Partition of Ireland () was the process by which the Government of the United Kingdom of Great Britain and Ireland (UK) divided Ireland into two self-governing polities: Northern Ireland and Southern Ireland (the area today known as the R ...
, which had already been decided by the Westminster parliament in the
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 Bi ...
, was effectively confirmed in the Anglo-Irish treaty. The most contentious areas of the Treaty for the IRA were the disestablishment of the Irish Republic declared in 1919, the abandonment of the
First Dáil First most commonly refers to: * First, the ordinal form of the number 1 First or 1st may also refer to: Acronyms * Faint Images of the Radio Sky at Twenty-Centimeters, an astronomical survey carried out by the Very Large Array * Far Infrared a ...
, the status of the
Irish Free State The Irish Free State (6 December 192229 December 1937), also known by its Irish-language, Irish name ( , ), was a State (polity), state established in December 1922 under the Anglo-Irish Treaty of December 1921. The treaty ended the three-ye ...
as a dominion in the
British Commonwealth The Commonwealth of Nations, often referred to as the British Commonwealth or simply the Commonwealth, is an international association of 56 member states, the vast majority of which are former territories of the British Empire The B ...
and the British retention of the strategic
Treaty Ports Treaty ports (; ) were the port cities in China and Japan that were opened to foreign trade mainly by the unequal treaties forced upon them by Western powers, as well as cities in Korea opened up similarly by the Qing dynasty of China (before th ...
on Ireland's south western and north western coasts which were to remain occupied by the
Royal Navy The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...
. All these issues were the cause of a split in the IRA and ultimately civil war. Michael Collins, the Irish finance minister and
Irish Republican Brotherhood The Irish Republican Brotherhood (IRB; ) was a secret oath-bound fraternal organisation dedicated to the establishment of an "independent democratic republic" in Ireland between 1858 and 1924.McGee, p. 15. Its counterpart in the United States ...
(IRB) president, argued in the
Dáil Éireann Dáil Éireann ( ; , ) is the lower house and principal chamber of the Oireachtas, which also includes the president of Ireland and a senate called Seanad Éireann.Article 15.1.2° of the Constitution of Ireland reads: "The Oireachtas shall co ...
that the treaty gave "not the ultimate freedom that all nations aspire and develop, but the freedom to achieve freedom". However, those against the treaty believed that it would never deliver full Irish independence.


Split in the Nationalist movement

The split over the Treaty was deeply personal. Many on both sides had been close friends and comrades during the War of Independence. This made their disagreement all the more bitter. On 6 January 1922, at the
Mansion House, Dublin The Mansion House () is a house on Dawson Street, Dublin, which has been the official residence of the Lord Mayor of Dublin since 1715, and was also the meeting place of the Dáil Éireann from 1919 until 1922. History The first dedicated mayor ...
, Austin Stack, Home Affairs minister, showed president de Valera the evening news announcing the signing of the Treaty: de Valera merely glanced at it; when
Eamonn Duggan Eamonn Seán Duggan (; 2 March 1878 – 6 June 1936) was an Irish lawyer and politician who served as Government Chief Whip and Parliamentary Secretary to the Minister for Defence from 1927 to 1932, Parliamentary Secretary to the Minister for ...
, part of the returning Irish delegation, handed him an envelope confirming it, he pushed it aside. De Valera had held secret discussions with UK Prime Minister
David Lloyd George David Lloyd George, 1st Earl Lloyd-George of Dwyfor (17 January 1863 – 26 March 1945) was Prime Minister of the United Kingdom from 1916 to 1922. A Liberal Party (United Kingdom), Liberal Party politician from Wales, he was known for leadi ...
from 14 to 21 July in London. Collins, also part of the delegation, supposed (with others) that these discussions confirmed the earlier correspondence, i.e. no British acceptance of a Republic. De Valera, Stack and Defence minister
Cathal Brugha Cathal Brugha (; born Charles William St John Burgess; 18 July 1874 – 7 July 1922) was an Irish republican politician who served as Minister for Defence from 1919 to 1922, Ceann Comhairle of Dáil Éireann in January 1919, the first presid ...
had then all refused to join the delegation to London. Collins wrote that his inclusion as a plenipotentiary was "a trap" of de Valera's which he was forewarned of, argued against, but walked into anyway, "as a soldier obeying his commanding officer."
Arthur Griffith Arthur Joseph Griffith (; 31 March 1871 – 12 August 1922) was an Irish writer, newspaper editor and politician who founded the political party Sinn Féin. He led the Irish delegation at the negotiations that produced the 1921 Anglo-Irish Trea ...
, the delegation chairman, had made a similar comment about obeying orders to de Valera himself. Mutual suspicion and confusion pertained; the delegation was unclear about the cabinet's instructions and individually became burdened to the point of breakdown. Collins expected the blame for the compromise within the Treaty and wrote: "Early this morning I signed my death warrant." Notwithstanding this, he was frustrated and at times emotional when de Valera and others refused to support the Treaty and friendships died. Dáil Éireann (the parliament of the Irish Republic) narrowly passed the Anglo-Irish Treaty by 64 votes to 57 on 7 January 1922. Following the Treaty's ratification, in accordance with article 17 of the Treaty, the British-recognised
Provisional Government of the Irish Free State The Provisional Government of Ireland () was the provisional government for the administration of Southern Ireland from 16 January 1922 to 5 December 1922. It was a transitional administration for the period between the ratification of the Anglo ...
was established. Its authority under the Treaty was to provide a "provisional arrangement for the administration of Southern Ireland during the interval" before the establishment of the Irish Free State. In accordance with the Treaty, the British Government transferred "the powers and machinery requisite for the discharge of its duties". Before the British Government transferred such powers, the members of the Provisional Government each "signified in writing
heir Inheritance is the practice of receiving private property, titles, debts, entitlements, privileges, rights, and obligations upon the death of an individual. The rules of inheritance differ among societies and have changed over time. Offi ...
acceptance of he Treaty. Upon the Treaty's ratification, de Valera resigned as President of the Republic and failed to be re-elected by an even closer vote of 60–58. He challenged the right of the Dáil to approve the treaty, saying that its members were breaking their oath to the Irish Republic. Meanwhile, he continued to promote a compromise whereby the new Irish Free State would be in " external association" with the British Commonwealth rather than be a member of it (the inclusion of republics within the Commonwealth of Nations was not formally implemented until 1949). In early March, de Valera formed the Cumann na Poblachta ('Republican Association') party while remaining a member of Sinn Féin, and commenced a speaking tour of the more republican province of
Munster Munster ( or ) is the largest of the four provinces of Ireland, located in the south west of the island. In early Ireland, the Kingdom of Munster was one of the kingdoms of Gaelic Ireland ruled by a "king of over-kings" (). Following the Nor ...
on 17 March 1922. During the tour he made controversial speeches at
Carrick on Suir Carrick-on-Suir () is a town in County Tipperary, Republic of Ireland, Ireland. It lies on both banks of the River Suir. The part on the north bank of the Suir lies in the Civil parishes in Ireland, civil parish of "Carrick", in the historical B ...
, Lismore,
Dungarvan Dungarvan () is a coastal town and harbour in County Waterford, on the south-east coast of Ireland. Prior to the merger of Waterford County Council with Waterford City Council in 2014, Dungarvan was the county town and administrative centre of ...
and
Waterford Waterford ( ) is a City status in Ireland, city in County Waterford in the South-East Region, Ireland, south-east of Ireland. It is located within the Provinces of Ireland, province of Munster. The city is situated at the head of Waterford H ...
, saying at one point, "If the Treaty were accepted, the fight for freedom would still go on, and the Irish people, instead of fighting foreign soldiers, will have to fight the Irish soldiers of an Irish government set up by Irishmen." At Thurles several days later he repeated this imagery, and added that the IRA "would have to wade through the blood of the soldiers of the Irish Government, and perhaps through that of some members of the Irish Government to get their freedom." In a letter to the ''
Irish Independent The ''Irish Independent'' is an Irish daily newspaper A newspaper is a Periodical literature, periodical publication containing written News, information about current events and is often typed in black ink with a white or gray backgrou ...
'' on 23 March, de Valera accepted the accuracy of their report of his comment about "wading" through blood, but deplored that the newspaper had published it. More seriously, many
Irish Republican Army The Irish Republican Army (IRA) is a name used by various Resistance movement, resistance organisations in Ireland throughout the 20th and 21st centuries. Organisations by this name have been dominantly Catholic and dedicated to anti-imperiali ...
(IRA) officers were also against the treaty, and in March 1922 an ad hoc Army Convention repudiated the authority of the Dáil to accept the treaty. In contrast, the Minister of Defence, Richard Mulcahy, stated in the Dáil on 28 April that conditions in Dublin had prevented a Convention from being held, but that delegates had been selected and voted by ballot to accept the Oath. The anti-Treaty IRA formed their own "Army Executive", which they declared to be the real government of the country, despite the result of the 1921 general election. On 26 April Mulcahy summarised alleged illegal activities by many IRA men over the previous three months, whom he described as 'seceding volunteers', including hundreds of robberies. Yet this fragmenting army was the only police force on the ground following the disintegration of the Irish Republican Police and the disbanding of the
Royal Irish Constabulary The Royal Irish Constabulary (RIC, ; simply called the Irish Constabulary 1836–67) was the police force in Ireland from 1822 until 1922, when all of the island was part of the United Kingdom of Great Britain and Ireland, United Kingdom. A sep ...
(RIC). By putting ten questions to Mulcahy on 28 April, Seán MacEntee argued that the Army Executive had acted continuously on its own to create a republic since 1917, had an unaltered constitution, had never fallen under the control of the Dáil, and that "the only body competent to dissolve the Volunteer Executive was a duly convened convention of the Irish Republican Army" – not the Dáil. By accepting the treaty in January and abandoning the republic, the Dáil majority had effectively deserted the Army Executive. In his reply, Mulcahy rejected this interpretation. Then, in a debate on defence, MacEntee suggested that supporting the Army Executive "even if it meant the scrapping of the Treaty and terrible and immediate war with England, would be better than the civil war which we are beginning at present apparently". MacEntee's supporters added that the many robberies complained of by Mulcahy on 26 April were caused by the lack of payment and provision by the Dáil to the volunteers.


Occupation of the Four Courts

On 14 April 1922, 200 Anti-Treaty IRA militants, with Rory O'Connor as their spokesman, occupied the
Four Courts The Four Courts () is Ireland's most prominent courts building, located on Inns Quay in Dublin. The Four Courts is the principal seat of the Supreme Court, the Court of Appeal, the High Court and the Dublin Circuit Court. Until 2010 the build ...
and several other buildings in central Dublin, resulting in a tense stand-off. These anti-treaty Republicans wanted to spark a new armed confrontation with the British, which they hoped would unite the two factions of the IRA against their common enemy. However, for those who were determined to make the Free State into a viable, self-governing Irish state, this was an act of rebellion that would have to be put down by them rather than the British. Arthur Griffith was in favour of using force against these men immediately, but Michael Collins, who wanted at all costs to avoid civil war, left the Four Courts garrison alone until late June 1922. By this point, the Pro-Treaty Sinn Féin party had secured a large majority in the general election, along with other parties that supported the Treaty. Collins was also coming under continuing pressure from London to assert his government's authority in Dublin.


Delay until the June election

Collins established an "army re-unification committee" to re-unite the IRA and organised an election pact with de Valera's anti-treaty political followers to campaign jointly in the Free State's first election in 1922 and form a coalition government afterwards. He also tried to reach a compromise with anti-treaty IRA leaders by agreeing to a republican-type constitution (with no mention of the British monarchy) for the new state. IRA leaders such as Liam Lynch were prepared to accept this compromise. However, the proposal for a republican constitution was vetoed by the British as being contrary to the terms of the treaty and they threatened military intervention in the Free State unless the treaty were fully implemented. Collins reluctantly agreed. This completely undermined the electoral pact between the pro- and anti-treaty factions, who went into the Irish general election on 16 June 1922 as hostile parties in some constituencies, both calling themselves Sinn Féin. The Pro-Treaty Sinn Féin party claimed the election with 239,193 votes to 133,864 for Anti-Treaty Sinn Féin. A further 247,226 people voted for other parties, most of whom supported the Treaty. Labour's 132,570 votes were ambiguous with regard to the Treaty. According to Hopkinson, "Irish labour and union leaders, while generally pro-Treaty, made little attempt to lead opinion during the Treaty conflict, casting themselves rather as attempted peacemakers." The election showed that a majority of the Irish electorate accepted the treaty and the foundation of the Irish Free State, but de Valera, his political followers and most of the IRA continued to oppose the treaty. De Valera is quoted as saying, "the majority have no right to do wrong". From the anti-treaty perspective the election was held under the British threat of a war of reconquest and therefore was not a free contest. In this view, the pro-treaty position expressed as republican leader Liam Mellows put it 'not the will of the people, but the fear of the people'. Meanwhile, under the leadership of Michael Collins and Arthur Griffith, the pro-treaty Provisional Government set about establishing the Irish Free State, and organised the National Army – to replace the IRA – and a new police force. However, since it was envisaged that the new army would be built around the IRA, Anti-Treaty IRA units were allowed to take over British barracks and take their arms. In practice, this meant that by the summer of 1922, the Provisional Government of Southern Ireland controlled only Dublin and some other areas like
County Longford County Longford () is a Counties of Ireland, county in Republic of Ireland, Ireland. It is in the Provinces of Ireland, province of Leinster. It is named after the town of Longford. Longford County Council is the Local government in the Republic ...
where the IRA units supported the treaty. Fighting ultimately broke out when the Provisional Government tried to assert its authority over well-armed and intransigent Anti-Treaty IRA units around the country – particularly a hardliner group in Dublin.


Assassination of Field Marshal Wilson

Field Marshal Henry Hughes Wilson, a prominent security adviser to the Prime Minister of Northern Ireland, James Craig, was shot dead by IRA men on his own doorstep in London on 22 June 1922, with no responsibility for the act being publicly claimed by any IRA authority.
Winston Churchill Sir Winston Leonard Spencer Churchill (30 November 1874 – 24 January 1965) was a British statesman, military officer, and writer who was Prime Minister of the United Kingdom from 1940 to 1945 (Winston Churchill in the Second World War, ...
assumed that the Anti-Treaty IRA were responsible for the shooting and warned Collins that he would use British troops to attack the Four Courts unless the Provisional Government took action. In fact, the British cabinet actually resolved to attack the Four Courts themselves on 25 June, in an operation that would have involved tanks,
howitzer The howitzer () is an artillery weapon that falls between a cannon (or field gun) and a mortar. It is capable of both low angle fire like a field gun and high angle fire like a mortar, given the distinction between low and high angle fire break ...
s and aeroplanes. However, on the advice of General Nevil Macready, who commanded the British garrison in Dublin, the plan was cancelled at the last minute. Macready's argument was that British involvement would have united Irish Nationalist opinion against the treaty, and instead Collins was given a last chance to clear the Four Courts himself.


Course of the war


Fighting in Dublin

On 26 June anti-treaty forces occupying the Four Courts kidnapped JJ "Ginger" O'Connell, a general in the National Army, in retaliation for the arrest of Leo Henderson. Collins, after giving the Four Courts garrison a final (and according to Ernie O'Malley, only) ultimatum to leave the building on 27 June, decided to end the stand-off by bombarding the Four Courts garrison into surrender. The government then appointed Collins as Commander-in-Chief of the National Army. This attack was not the opening shot of the war, as skirmishes had taken place between pro- and anti-treaty IRA factions throughout the country when the British were handing over the barracks. However, this represented the 'point of no return', when all-out war was effectively declared and the Civil War officially began. Collins ordered Mulcahy to accept a British offer of two 18-pounder field
artillery Artillery consists of ranged weapons that launch Ammunition, munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during sieges, and l ...
for use by the new army of the Free State, though General Macready gave just 200 shells of the 10,000 he had in store at Richmond barracks in Inchicore. The anti-treaty forces in the Four Courts, who possessed only small arms, surrendered after three days of bombardment and the storming of the building by Provisional Government troops (28–30 June 1922). Shortly before the surrender, a massive explosion destroyed the western wing of the complex, including the Irish Public Record Office (PRO), injuring many advancing Free State soldiers and destroying the records. Government supporters alleged that the building had been deliberately mined. Historians dispute whether the PRO was intentionally destroyed by mines laid by the Republicans on their evacuation, or whether the explosions occurred when their ammunition store was accidentally ignited by the bombardment. Coogan, however, asserts that two lorry-loads of
gelignite Gelignite (), also known as blasting gelatin or simply "jelly", is an explosive material consisting of collodion-cotton (a type of nitrocellulose or guncotton) dissolved in either nitroglycerine or nitroglycol and mixed with wood pulp and Potassi ...
was exploded in the PRO, leaving priceless manuscripts floating over the city for several hours afterward. Pitched battles continued in Dublin until 5 July. IRA units from the Dublin Brigade, led by Oscar Traynor, occupied
O'Connell Street O'Connell Street () is a street in the centre of Dublin, Ireland, running north from the River Liffey. It connects the O'Connell Bridge to the south with Parnell Street to the north and is roughly split into two sections bisected by Henry ...
– provoking a week's more street fighting and costing another 65 killed and 280 wounded. Among the dead was Republican leader Cathal Brugha, who made his last stand after exiting the Granville Hotel. In addition, the Free State took over 500 Republican prisoners. The civilian casualties are estimated to have numbered well over 250. When the fighting in Dublin died down, the Free State government was left firmly in control of the Irish capital and the anti-treaty forces dispersed around the country, mainly to the south and west.


The opposing forces

The outbreak of the Civil War forced pro- and anti-treaty supporters to choose sides. Supporters of the treaty came to be known as "pro-treaty" or later Free State Army, legally after 1923 the National Army, and were often called "Staters" by their opponents. The latter called themselves Republicans and were also known as "anti-treaty" forces or "Irregulars", a term preferred by the Free State side. This nomenclature, however, may be confusing. The civil war was fought by republicans on both sides who disagreed on how best to achieve the republic. For example, Collins and many of his closest comrades started the war committed to the goals of the
Irish Republican Brotherhood The Irish Republican Brotherhood (IRB; ) was a secret oath-bound fraternal organisation dedicated to the establishment of an "independent democratic republic" in Ireland between 1858 and 1924.McGee, p. 15. Its counterpart in the United States ...
. The Anti-Treaty IRA claimed that it was defending the Irish Republic declared in 1916 during the
Easter Rising The Easter Rising (), also known as the Easter Rebellion, was an armed insurrection in Ireland during Easter Week in April 1916. The Rising was launched by Irish republicans against British rule in Ireland with the aim of establishing an ind ...
, confirmed by the First Dáil and invalidly set aside by those who accepted the compromise of the Free State. Éamon de Valera stated that he would serve as an ordinary IRA volunteer and left the leadership of the anti-treaty Republicans to Liam Lynch, the
IRA Chief of Staff Ira or IRA may refer to: *Ira (name), a Hebrew, Sanskrit, Russian or Finnish language personal name * Ira (surname), a rare Estonian family name; occurs in some other languages *Iran, UNDP code IRA Law and finance *Indian Reorganization Act of 19 ...
. De Valera, though the Republican President as of October 1922, had little control over military operations. The campaign was directed by Liam Lynch until he was killed on 10 April 1923, and then by Frank Aiken from 20 April 1923. The Civil War split the IRA. When the Civil War broke out, the Anti-Treaty IRA (concentrated in the south and west) outnumbered pro-Free State forces by roughly 12,000 men to 8,000. Moreover, the anti-treaty ranks included many of the IRA's most experienced guerrilla fighters. The paper strength of the IRA in early 1922 was over 72,000 men, but most of them were recruited during the truce with the British and fought in neither the War of Independence nor the Civil War. According to Richard Mulcahy's estimate, the Anti-Treaty IRA at the beginning of the war had 6,780 rifles and 12,900 men.Cottrell, Peter ''The Irish Civil War, 1922–23'', London: Osprey, 2008, p. 22. However, the IRA lacked an effective command structure, a clear strategy and sufficient arms. As well as rifles they had a handful of machine guns and many of their fighters were armed only with
shotgun A shotgun (also known as a scattergun, peppergun, or historically as a fowling piece) is a long gun, long-barreled firearm designed to shoot a straight-walled cartridge (firearms), cartridge known as a shotshell, which discharges numerous small ...
s or handguns. They also took a small number of armoured cars from British troops as they were evacuating the country. Finally, they had no artillery of any kind. As a result, they were forced to adopt a defensive stance throughout the war. By contrast, the Free State army funded by the British managed to expand its forces dramatically after the start of the war. Collins and his commanders were able to build up an army that could overwhelm their opponents in the field. British supplies of artillery, aircraft, armoured cars, machine guns, small arms and ammunition were of much help to pro-Treaty forces. The British delivered for instance, over 27,000 rifles, 250 machine guns and eight 18-pounder artillery pieces to the pro-treaty forces between the outbreak of the Civil War and September 1922. The National Army amounted to 14,000 men by August 1922, was 38,000 strong by the end of 1922, and by the end of the war had grown to 55,000 men and 3,500 officers, far in excess of what the Irish state would need to maintain in peacetime. The Free State army was able to absorb experienced soldiers from the recently disbanded Irish regiments in the British army. These soldiers provided invaluable specialist skills for the new army.Like the Anti-Treaty IRA, the Free State's National Army was initially rooted in the IRA that fought against the British.Cottrell, Peter ''The Irish Civil War, 1922–23'', London: Osprey, 2008, p. 23. Collins' most ruthless officers and men were recruited from the Dublin Active Service Unit (the elite unit of the IRA's Dublin Brigade) and from Collins' Intelligence Department and assassination unit, The Squad. In the new National Army, they were known as the Dublin Guard. Towards the end of the war, they were implicated in some notorious atrocities against anti-treaty guerrillas in
County Kerry County Kerry () is a Counties of Ireland, county on the southwest coast of Republic of Ireland, Ireland, within the Provinces of Ireland, province of Munster and the Southern Region, Ireland, Southern Region. It is bordered by two other countie ...
. Up to the outbreak of Civil War, it had been agreed that only men with service in the IRA could be recruited into the National Army. However, once the war began, all such restrictions were lifted. A 'National Call to Arms' issued on 7 July for recruitment on a six-month basis brought in thousands of new recruits. Many of the new army's recruits were veterans of the
British Army The British Army is the principal Army, land warfare force of the United Kingdom. the British Army comprises 73,847 regular full-time personnel, 4,127 Brigade of Gurkhas, Gurkhas, 25,742 Army Reserve (United Kingdom), volunteer reserve perso ...
in
World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
, where they had served in disbanded Irish regiments of the British Army. Many others were raw recruits without any military experience. The fact that at least 50% of the other ranks had no military experience in turn led to ill-discipline becoming a major problem. A major problem for the National Army was a shortage of experienced officers. At least 20% of its officers had previously served as officers in the British Army, while 50% of the rank-and-file of the National Army had served in the British Army in World War I. Former British Army officers were also recruited for their technical expertise. A number of the senior Free State commanders, such as Emmet Dalton, John T. Prout and W. R. E. Murphy, had seen service as officers in World War I, Dalton and Murphy in the British Army and Prout in the US Army. The Republicans made much use of this fact in their propaganda – claiming that the Free State was only a proxy force for Britain itself. However, the majority of Free State soldiers were raw recruits without military experience, either in World War I or the Irish War of Independence. There were also a significant number of former members of the British Armed Forces on the Republican side, including such senior figures as Tom Barry, David Robinson and Erskine Childers.


Free State takes major towns

With Dublin in pro-treaty hands, conflict spread throughout the country. The war started with the anti-treaty forces holding Cork,
Limerick Limerick ( ; ) is a city in western Ireland, in County Limerick. It is in the Provinces of Ireland, province of Munster and is in the Mid-West Region, Ireland, Mid-West which comprises part of the Southern Region, Ireland, Southern Region. W ...
and Waterford as part of a self-styled Munster Republic. However, since the anti-treaty side were not equipped to wage conventional war, Lynch was unable to take advantage of the Republicans' initial advantage in numbers and territory held. He hoped simply to hold the Munster Republic long enough to force Britain to renegotiate the treaty. The large towns in Ireland were all relatively easily taken by the Free State in August 1922. Collins, Richard Mulcahy and
Eoin O'Duffy Eoin O'Duffy (born Owen Duffy; 28 January 1890 – 30 November 1944) was an Irish revolutionary, soldier, police commissioner, politician and fascist. O'Duffy was the leader of the Monaghan Brigade of the Irish Republican Army (IRA) and a promin ...
planned a nationwide Free State offensive, dispatching columns overland to take Limerick in the west and Waterford in the south-east and seaborne forces to take counties Cork and Kerry in the south and Mayo in the west. In the south, landings occurred at Union Hall in Cork and Fenit, the port of
Tralee Tralee ( ; , ; formerly , meaning 'strand of the River Lee') is the county town of County Kerry in the south-west of Republic of Ireland, Ireland. The town is on the northern side of the neck of the Dingle Peninsula, and is the largest town in ...
, in Kerry. Limerick fell on 20 July, Waterford on the same day and Cork city on 10 August after a Free State force landed by sea at
Passage West Passage West (locally known as "Passage"; ) is a port town in County Cork, Ireland, situated on the west bank of Cork Harbour, some 10 km south-east of Cork (city), Cork city. Passage West was designated a conservation area in the 2003 Co ...
. Another seaborne expedition to Mayo in the west secured government control over that part of the country. While in some places the Republicans had put up determined resistance, nowhere were they able to defeat regular forces armed with artillery and armour. The only real conventional battle during the Free State offensive, the
Battle of Killmallock The Battle of Kilmallock took place between 25 July and 5 August 1922 in County Limerick, Ireland. It was one of the largest engagements of the Irish Civil War. It consisted of ten days of fighting in the countryside round Kilmallock in Coun ...
, was fought when Free State troops advanced south from Limerick.


Guerrilla war

Government victories in the major towns inaugurated a period of
guerrilla warfare Guerrilla warfare is a form of unconventional warfare in which small groups of irregular military, such as rebels, partisans, paramilitary personnel or armed civilians, which may include recruited children, use ambushes, sabotage, terrori ...
. After the fall of Cork, Lynch ordered IRA units to disperse and form
flying column A flying column is a small, independent, military land unit capable of rapid mobility and usually composed of all arms. It is often an ''ad hoc'' unit, formed during the course of operations. The term is usually, though not necessarily, appl ...
s as they had when fighting the British. They held out in areas such as the western part of counties Cork and Kerry in the south,
county Wexford County Wexford () is a Counties of Ireland, county in Republic of Ireland, Ireland. It is in the Provinces of Ireland, province of Leinster and is part of the Southern Region, Ireland, Southern Region. Named after the town of Wexford, it was ba ...
in the east and counties
Sligo Sligo ( ; , meaning 'abounding in shells') is a coastal seaport and the county town of County Sligo, Ireland, within the western province of Connacht. With a population of 20,608 in 2022, it is the county's largest urban centre (constituting 2 ...
and Mayo in the west. Sporadic fighting also took place around
Dundalk Dundalk ( ; ) is the county town of County Louth, Ireland. The town is situated on the Castletown River, which flows into Dundalk Bay on the north-east coast of Ireland, and is halfway between Dublin and Belfast, close to and south of the bor ...
, where
Frank Aiken Francis Thomas Aiken (13 February 1898 – 18 May 1983) was an Irish revolutionary and politician. He was Chief of Staff of the Irish Republican Army, chief of staff of the Irish Republican Army (1922–1969), Anti-Treaty IRA at the end of the I ...
and the Fourth Northern Division of the Irish Republican Army were based, and Dublin, where small-scale but regular attacks were mounted on Free State troops. August and September 1922 saw widespread attacks on Free State forces in the territories that they had occupied in the July–August offensive, inflicting heavy casualties on them. Collins was killed in an ambush by anti-treaty Republicans at Béal na Bláth, near his home in County Cork, in August 1922.In the 1996 film '' Michael Collins'', de Valera meets the killer of Collins prior to the ambush that leads to his death. However, although de Valera was in the area at the time, he is not thought to have ordered the assassination. Collins' death increased the bitterness of the Free State leadership towards the Republicans and probably contributed to the subsequent descent of the conflict into a cycle of atrocities and reprisals. Arthur Griffith, the Free State president, had also died of a brain haemorrhage ten days before, leaving the government in the hands of W.T. Cosgrave and the Free State army under the command of General Richard Mulcahy. For a brief period, with rising casualties among its troops and its two principal leaders dead, it looked as if the Free State might collapse. However, as winter set in, the Republicans found it increasingly difficult to sustain their campaign, and casualty rates among National Army troops dropped rapidly. For instance, in County Sligo, 54 people died in the conflict, of whom all but eight had been killed by the end of September. In the autumn and winter of 1922, Free State forces broke up many of the larger Republican guerrilla units – in Sligo, Meath and Connemara in the west, for example, and in much of Dublin city. Elsewhere, anti-treaty units were forced by lack of supplies and safe-houses to disperse into smaller groups, typically of nine to ten men. Despite these successes for the National Army, it took eight more months of intermittent warfare before the war was brought to an end. By late 1922 and early 1923, the anti-treaty guerrilla campaign had been reduced largely to acts of sabotage and destruction of public infrastructure such as roads and railways. It was also in this period that the Anti-Treaty IRA began burning the homes of Free State Senators and of many of the Anglo-Irish landed class. In October 1922, de Valera and the anti-treaty Teachtaí Dála (TDs) set up their own "Republican government" in opposition to the Free State. However, by then the anti-treaty side held no significant territory and de Valera's government had no authority over the population.


Atrocities and executions

On 27 September 1922, three months after the outbreak of war, the Free State's Provisional Government put before the Dáil an Army (Emergency Powers) Resolution endorsing the establishment of military courts and tribunals by the Army Council. Sometimes incorrectly referred to as the "Public Safety Bill" or "Emergency Powers Act", the Army Resolution was not law, it was a resolution passed by parliament endorsing the measures the pro-treaty army was implementing in the war under martial law since July. Consequently, "Public Safety Act" or "Emergency Powers Act" is not recorded on the Irish Statute book. These pieces of "legislation" are alone the invention of Irish historians. The fictitious "Acts" nevertheless play an important role in the Irish state's foundation myth, dividing civil war violence into bogus legal and illegal categories. The Army Resolution recognised the military courts and tribunals established in the army to impose life imprisonment, as well as the death penalty, for 'aiding or abetting attacks' on state forces, possession of arms and ammunition or explosive 'without the proper authority' and 'looting destruction or arson'. The final phase of the Civil War degenerated into a series of atrocities that left a lasting legacy of bitterness in Irish politics. The Free State began executing Republican prisoners on 17 November 1922, when five IRA men were shot by firing squad. They were followed on 24 November by the execution of acclaimed author and treaty negotiator Erskine Childers. In all, out of around 12,000 Republican prisoners taken in the conflict, 81 were officially executed by the Free State. The Anti-Treaty IRA in reprisal assassinated TD Seán Hales on 7 December 1922. The next day four prominent Republicans held since the first week of the war — Rory O'Connor,
Liam Mellows William Joseph Mellows (, 25 May 1892 – 8 December 1922) was an Irish republicanism, Irish republican and Sinn Féin politician. Born in England to an English father and Irish mother, he grew up in Ashton-under-Lyne before moving to Ireland, ...
, Richard Barrett and Joe McKelvey — were executed in revenge for the killing of Hales. In addition, Free State troops, particularly in County Kerry, where the guerrilla campaign was most bitter, began the
summary execution In civil and military jurisprudence, summary execution is the putting to death of a person accused of a crime without the benefit of a free and fair trial. The term results from the legal concept of summary justice to punish a summary offense, a ...
of captured anti-treaty fighters. The most notorious example of this occurred at Ballyseedy, where nine Republican prisoners were tied to a landmine, which was detonated, killing eight and only leaving one, Stephen Fuller, who was blown clear by the blast, to escape. The number of "unauthorised" executions of Republican prisoners during the war has been put as high as 153. Among the Republican reprisals were the assassination of Kevin O'Higgins's father and W. T. Cosgrave's uncle in February 1923. The IRA were unable to maintain an effective guerrilla campaign, given the gradual loss of support. The
Catholic Church The Catholic Church (), also known as the Roman Catholic Church, is the List of Christian denominations by number of members, largest Christian church, with 1.27 to 1.41 billion baptized Catholics Catholic Church by country, worldwid ...
also supported the Free State, deeming it the lawful government of the country, denouncing the IRA and refusing to administer the
Sacrament A sacrament is a Christian rite which is recognized as being particularly important and significant. There are various views on the existence, number and meaning of such rites. Many Christians consider the sacraments to be a visible symbol ...
s to anti-treaty fighters. On 10 October 1922, the Catholic Bishops of Ireland issued a formal statement, describing the anti-treaty campaign as: The Church's support for the Free State aroused bitter hostility among some republicans. Although the Catholic Church in independent Ireland has often been seen as a triumphalist Church, a recent study has found that it felt deeply insecure after these events.


End of the war

By early 1923, the offensive capability of the IRA had been seriously eroded and when, in February 1923, the Republican leader Liam Deasy was captured by Free State forces, he called on the republicans to end their campaign and reach an accommodation with the Free State. The State's executions of anti-treaty prisoners, 34 of whom were shot in January 1923, also took its toll on the Republicans' morale. In addition, the National Army's operations in the field were slowly but steadily breaking up the remaining Republican concentrations. March and April 1923 saw this progressive dismemberment of the Republican forces continue with the capture and sometimes killing of guerrilla columns. A National Army report of 11 April stated, "Events of the last few days point to the beginning of the end as a far as the irregular campaign is concerned". As the conflict petered out into a ''de facto'' victory for the pro-treaty side. The Anti-Treaty IRA executive (senior commanders) met on 24 March 1923 in
County Waterford County Waterford () is a Counties of Ireland, county in Republic of Ireland, Ireland. It is in the Provinces of Ireland, province of Munster and is part of the Southern Region, Ireland, Southern Region. It is named after the city of Waterford. ...
to discuss the war's future. Tom Barry proposed a motion to end the war, but it was defeated by 6 votes to 5. Éamon de Valera was allowed to attend, after some debate, but was given no voting rights. Lynch, the Republican leader, was killed in a skirmish in the Knockmealdown Mountains in County Tipperary on 10 April. On 11 April six more Volunteers were executed in
Tuam Tuam (; , meaning 'mound' or 'burial-place') is a town in Ireland and the second-largest settlement in County Galway. It is west of the midland Region, Ireland, midlands of Ireland, about north of Galway city. The town is in a civil parishe ...
, County Galway. The National Army had extracted information from Republican prisoners in Dublin that the IRA Executive was in the area and as well as killing Lynch, they also captured senior anti-treaty IRA officers
Dan Breen Daniel Breen (11 August 1894 – 27 December 1969) was a volunteer in the Irish Republican Army during the Irish War of Independence and the Irish Civil War. In later years he was a Fianna Fáil politician. Background Breen was born in Grange ...
, Todd Andrews, Seán Gaynor and Frank Barrett in the operation. It is often suggested by historians including Professor Michael Laffan of
University College Dublin University College Dublin (), commonly referred to as UCD, is a public research university in Dublin, Ireland, and a collegiate university, member institution of the National University of Ireland. With 38,417 students, it is Ireland's largest ...
, that the death of Lynch allowed the more pragmatic Frank Aiken, who took over as IRA Chief of Staff, to call a halt to what seemed a futile struggle. Aiken's accession to IRA leadership was followed on 30 April by the declaration of a suspension of military activities; on 24 May 1923, he issued a ceasefire order to IRA volunteers. They were to dump arms rather than surrender them or continue a fight that they were incapable of winning.


Aftermath of the ceasefire

Éamon de Valera supported the order, issuing a statement to Anti-Treaty fighters on 24 May: The Free State government had started peace negotiations in early May, which broke down. The
High Court of Justice in Ireland The High Court of Justice in Ireland was the court created by the Supreme Court of Judicature Act (Ireland) 1877 to replace the existing court structure in Ireland. Its creation mirrored the reform of the courts of England and Wales five years ...
ruled on 31 July 1923 that a state of war no longer existed, and consequently the internment of Republicans, permitted under
common law Common law (also known as judicial precedent, judge-made law, or case law) is the body of law primarily developed through judicial decisions rather than statutes. Although common law may incorporate certain statutes, it is largely based on prece ...
only in wartime, was now illegal. Without a formal peace, holding 13,000 prisoners and worried that fighting could break out again at any time, the government enacted two Public Safety (Emergency Powers) Acts on 1 and 3 August 1923, to permit continued internment and other measures. Thousands of Anti-Treaty IRA members (including de Valera on 15 August) were arrested by the Free State forces in the weeks and months after the end of the war, when they had dumped their arms and returned home. A general election was held on 27 August 1923, which
Cumann na nGaedheal Cumann na nGaedheal (; ) was a political party in the Irish Free State, which formed the government from 1923 to 1932. It was named after the original Cumann na nGaedheal organisation which merged with the Dungannon Clubs and the National Co ...
, the pro-Free State party, won with about 40% of the first-preference vote. The Republicans, represented by Sinn Féin, won about 27% of the vote. Many of their candidates and supporters were still imprisoned before, during and after the election. In October 1923, around 8,000 of the 12,000 Republican prisoners in Free State gaols went on a hunger strike. The strike lasted for 41 days and met little success (among those who died were Denny Barry, Joseph Whitty and Andy O'Sullivan) see: 1923 Irish Hunger Strikes. However, most of the women prisoners were released shortly thereafter and the hunger strike helped concentrate the Republican movement on the prisoners and their associated organisations. In July, de Valera had recognised the Republican political interests lay with the prisoners and went so far as to say:


Attacks on former Unionists

Although the cause of the Civil War was the Treaty, as the war developed the anti-treaty forces sought to identify their actions with the traditional Republican cause of the "men of no property" and the result was that large
Anglo-Irish Anglo-Irish people () denotes an ethnic, social and religious grouping who are mostly the descendants and successors of the English Protestant Ascendancy in Ireland. They mostly belong to the Anglican Church of Ireland, which was the State rel ...
landowners and some less well-off
Southern Unionists In the United States, Southern Unionists were white Southerners living in the Confederate States of America and the Southern Border states (American Civil War), Border States opposed to secession. Many fought for the Union (American Civil War), ...
were attacked. A total of 192 "stately homes" of the old landed class and of Free State politicians were destroyed by anti-treaty forces during the war. The stated reason for such attacks was that some landowners had become Free State senators. In October 1922, a deputation of Southern Unionists met W. T. Cosgrave to offer their support to the Free State and some of them had received positions in the State's
Upper house An upper house is one of two Legislative chamber, chambers of a bicameralism, bicameral legislature, the other chamber being the lower house. The house formally designated as the upper house is usually smaller and often has more restricted p ...
or
Senate A senate is a deliberative assembly, often the upper house or chamber of a bicameral legislature. The name comes from the ancient Roman Senate (Latin: ''Senatus''), so-called as an assembly of the senior (Latin: ''senex'' meaning "the el ...
. Among the prominent senators whose homes were attacked were: Palmerstown House near
Naas Naas ( ; or ) is the county town of County Kildare in Republic of Ireland, Ireland. In 2022, it had a population of 26,180, making it the largest town in County Kildare (ahead of Newbridge, County Kildare, Newbridge) and the List of urban ar ...
, which belonged to the Earl of Mayo, Moore Hall in Mayo, Horace Plunkett (who had helped to establish the rural co-operative schemes), and Senator Henry Guinness (which was unsuccessful). Also burned was Marlfield House in
Clonmel Clonmel () is the county town and largest settlement of County Tipperary, Republic of Ireland, Ireland. The town is noted in Irish history for its resistance to the Cromwellian conquest of Ireland, Cromwellian army which sacked the towns of Dro ...
, the home of Senator John Philip Bagwell, with its extensive library of historical documents. Bagwell was kidnapped and held in the Dublin Mountains, but later released when reprisals were threatened. However, in addition to their allegiance to the Free State, there were also other factors behind Republican animosity towards the old landed class. Many, but not all of these people, had supported the Crown forces during the War of Independence. This support was often largely moral, but sometimes it took the form of actively assisting the British in the conflict. Such attacks should have ended with the Truce of 11 July 1921, but they continued after the truce and escalated during the Civil War. In July 1922, Con Moloney, the IRA Adjutant General, ordered that unionist property should be seized to accommodate their men. The "worst spell" of attacks on former unionist property came in the early months of 1923, 37 "big houses" being burnt in January and February alone. Though the Land Purchase (Ireland) Act 1903 allowed tenants to buy land from their landlords, some small farmers, particularly in Mayo and Galway, simply occupied land belonging to political opponents during this period when the RIC had ceased to function. In 1919, senior Sinn Féin officials were sufficiently concerned at this unilateral action that they instituted Arbitration Courts to adjudicate disputes. Sometimes these attacks had sectarian overtones, although most IRA men made no distinction between Catholic and Protestant supporters of the Irish government. The IRA burnt an
orphanage An orphanage is a residential institution, total institution or group home, devoted to the care of orphans and children who, for various reasons, cannot be cared by their biological families. The parents may be deceased, absent, or abusi ...
housing Protestant boys near Clifden, County Galway in June 1922, on the ground that it was "pro-British". The 60 orphans were taken to Devonport on board a Royal Navy destroyer. Controversy continues to this day about the extent of intimidation of Protestants at this time. Many left Ireland during and after the Civil War. Dr Andy Bielenberg of UCC considers that about 41,000 who were not linked to the former British administration left Southern Ireland (which became the Irish Free State) between 1919 and 1923. He has found that a "high-water mark" of this 41,000 left between 1921 and 1923. In all, from 1911 to 1926, the Protestant population of the 26 counties fell from some 10.4% of the total population to 7.4%.


Foreign support

The Civil War attracted international attention which led to various groups expressing support and opposition to the anti-treaty side. The
Communist Party of Great Britain The Communist Party of Great Britain (CPGB) was the largest communist organisation in Britain and was founded in 1920 through a merger of several smaller Marxist groups. Many miners joined the CPGB in the 1926 general strike. In 1930, the CPGB ...
in its journal ''The Communist'' wrote "The proletarians of the IRA have the future of Ireland in their hands. If the Irish Labour Party would only dare! A mass movement of the Irish workers in alliance with the IRA could establish a Workers' Republic now". They were also supported by the
Communist International The Communist International, abbreviated as Comintern and also known as the Third International, was a political international which existed from 1919 to 1943 and advocated world communism. Emerging from the collapse of the Second Internationa ...
(Comintern) which on 3 January 1923 passed a resolution stating it "sends fraternal greetings to the struggling Irish national revolutionaries and feels assured that they will soon tread the only path that leads to real freedom – the path of Communism. The CI will assist all efforts to organise the struggle to combat this terror and to help the Irish workers and peasants to victory." The majority of Irish-Americans supported the treaty, including those in Clann na Gael and Friends of Irish Freedom. However anti-treaty republicans had control of what was left of Clann na Gael and the American Association for the Recognition of the Irish Republic so they supported the anti-treaty side during the war.


Consequences


Casualties

The Civil War, though short, was bloody. It cost the lives of many public figures, including Michael Collins, Cathal Brugha, Arthur Griffith and Liam Lynch. Both sides carried out brutal acts—the anti-treaty forces killed a TD and several other pro-Treaty politicians and burned many homes of senators and Free State supporters; while the government executed anti-treaty prisoners, officially and unofficially. The 2023 Irish Civil War Fatalities Project, a
University College Cork University College Cork – National University of Ireland, Cork (UCC) () is a constituent university of the National University of Ireland, and located in Cork (city), Cork. The university was founded in 1845 as one of three Queen's Universit ...
research project funded by the Department of Tourism, Culture, Arts, Gaeltacht, Sport and Media, has calculated that the pro-treaty forces suffered 637 fatalities from all causes. Both the project and the Republican roll of honour, compiled in the 1920s, calculate that 426 anti-Treaty IRA Volunteers were killed between January 1922 and April 1924. It has, however, been suggested that the anti-treaty forces' true death toll was higher. For total combatant and civilian deaths, figures of 1,426 in the Free State and 1,485 for the island of Ireland have been calculated by the 2023 project. A 2012 county-by-county study suggested a death toll of just under 2,000. In the decades following the Civil War, exaggerated casualty figures as high as 4,000 were suggested, though these numbers are generally accepted to be too high. The
Garda Síochána (; meaning "the Guardian(s) of the Peace") is the national police and security service of Republic of Ireland, Ireland. It is more commonly referred to as the Gardaí (; "Guardians") or "the Guards". The service is headed by the Garda Commissio ...
(new police force) was not involved in the war, which meant that it was well placed to develop into an unarmed and politically neutral police service after the war. It had been disarmed by the Government in order to win public confidence in June–September 1922 and in December 1922, the IRA issued a General Order not to fire on the Civil Guard. The
Criminal Investigation Department The Criminal Investigation Department (CID) is the branch of a police force to which most plainclothes criminal investigation, detectives belong in the United Kingdom and many Commonwealth of Nations, Commonwealth nations. A force's CID is disti ...
, or CID, a 350-strong, armed, plain-clothed Police Corps that had been established during the conflict for the purposes of counter-insurgency, was disbanded in October 1923, shortly after the conflict's end.


Economic costs

The economic costs of the war were also high. As their forces abandoned their fixed positions in July–August 1922, the Republicans burned many of the administrative buildings and businesses that they had been occupying. In addition, their subsequent guerrilla campaign caused much destruction, and the economy of the Free State suffered a hard blow in the earliest days of its existence, as a result. The material damage caused by the war to property in the Free State has been estimated to be in the region of £50 million in 1922. This is equivalent to about £2.2 billion, or €2.6 billion worth of damage in 2024 values. Particularly damaging to the Free State's economy was the systematic destruction of railway infrastructure and roads by the Republicans. In addition, the cost to the Free State of waging the war came to another £17 million (£718m or €883m in 2022 values). By September 1923, Deputy Hogan estimated the cost at £50 million. The new State ended 1923 with a budget deficit of over £4 million (£168m or €196m in 2022 values). This weakened financial situation meant that the new state could not pay its share of Imperial debt under the treaty. This adversely affected the boundary negotiations in 1924–25, in which the Free State government acquiesced that border with Northern Ireland would remain unchanged in exchange for forgiveness of the Imperial debt. Further, the state undertook to pay for damage caused to property between the truce of July 1921 and the end of the Civil War; W. T. Cosgrave told the Dáil:


Political results

The fact that the Irish Civil War was fought between Irish Nationalist factions meant that the sporadic conflict in Northern Ireland ended. Collins and Sir James Craig signed an agreement to end it on 30 March 1922, but, despite this, Collins covertly supplied arms to the Northern IRA until a week before his death in August 1922. Because of the Irish Civil War, Northern Ireland was able to consolidate its existence and the partition of Ireland was confirmed for the foreseeable future. The continuing war also confirmed the northern Unionists' existing stance against the ethos of all shades of nationalism. This might have led to open hostilities between North and South had the Irish Civil War not broken out. Indeed, the
Ulster Special Constabulary The Ulster Special Constabulary (USC; commonly called the "B-Specials" or "B Men") was a quasi-military Military reserve, reserve special constable police force in what would later become Northern Ireland. It was set up in October 1920, short ...
(the "B-Specials") that had been established in 1920 (on the foundation of Northern Ireland) was expanded in 1922 rather than being demobilised. In the event, it was only well after their defeat in the Civil War that anti-treaty Irish Republicans seriously considered whether to take armed action against British rule in Northern Ireland (the first serious suggestion to do this came in the late 1930s). The northern units of the IRA largely supported the Free State side in the Civil War because of Collins's policies, and over 500 of them joined the new Free State's National Army. The cost of the war and the budget deficit it caused was a difficulty for the new Free State and affected the Boundary Commission negotiations of 1925, which were to determine the border with Northern Ireland. The Free State agreed to waive its claim to predominantly Nationalist areas in Northern Ireland and in return its agreed share of the Imperial debt under the 1921 Treaty was not paid. In 1926, having failed to persuade the majority of the Anti-Treaty IRA or the anti-treaty party of Sinn Féin to accept the new status quo as a basis for an evolving Republic, a large faction led by de Valera and Aiken left to resume constitutional politics and to found the
Fianna Fáil Fianna Fáil ( ; ; meaning "Soldiers of Destiny" or "Warriors of Fál"), officially Fianna Fáil â€“ The Republican Party (), is a centre to centre-right political party in Ireland. Founded as a republican party in 1926 by Éamon de ...
party. Whereas Fianna Fáil was to become the dominant party in Irish politics, Sinn Féin became a small, isolated political party. The IRA, then much more numerous and influential than Sinn Féin, remained associated with Fianna Fáil (though not directly) until banned by de Valera in 1935. In 1927, Fianna Fáil members took the Oath of Allegiance and entered the Dáil, effectively recognising the legitimacy of the Free State. The Free State was already moving towards independence by this point. Under the
Statute of Westminster 1931 The Statute of Westminster 1931 is an act of the Parliament of the United Kingdom that significantly increased the autonomy of the Dominions of the British Commonwealth. Passed on 11 December 1931, the statute increased the sovereignty of t ...
, the British Parliament gave up its right to legislate for members of the British Commonwealth. When elected to power in 1932, Fianna Fáil under de Valera set about dismantling what they considered to be objectionable features of the treaty, abolishing the Oath of Allegiance, removing the power of the Office of
Governor General Governor-general (plural governors-general), or governor general (plural governors general), is the title of an official, most prominently associated with the British Empire. In the context of the governors-general and former British colonies, ...
(British representative in Ireland) and abolishing the Senate, which was dominated by former Unionists and pro-treaty Nationalists. In 1937, they passed a new
constitution A constitution is the aggregate of fundamental principles or established precedents that constitute the legal basis of a polity, organization or other type of entity, and commonly determines how that entity is to be governed. When these pri ...
, which made a
President President most commonly refers to: *President (corporate title) * President (education), a leader of a college or university *President (government title) President may also refer to: Arts and entertainment Film and television *'' Præsident ...
the head of state, did not mention any allegiance to the British monarch, and which included a territorial claim to Northern Ireland. The following year, Britain returned without conditions the seaports that it had kept under the terms of the treaty. When the
Second World War World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
broke out in 1939, the state was able to demonstrate its independence by remaining neutral throughout the war, although Dublin did to some extent tacitly support the Allies. Finally, in 1948, a coalition government, containing elements of both sides in the Civil War (pro-treaty
Fine Gael Fine Gael ( ; ; ) is a centre-right, liberal-conservative, Christian democratic political party in Ireland. Fine Gael is currently the third-largest party in the Republic of Ireland in terms of members of Dáil Éireann. The party had a member ...
and anti-treaty Clann na Poblachta) left the British Commonwealth and described the state as a republic in The Republic of Ireland Act 1948. By the 1950s, the issues over which the Civil War had been fought were largely settled.


Legacy and memory

As with most civil wars, the internecine conflict left a bitter legacy, which continues to influence Irish politics to this day. The two largest political parties in the republic through most of its history (except for the
2011 The year marked the start of a Arab Spring, series of protests and revolutions throughout the Arab world advocating for democracy, reform, and economic recovery, later leading to the depositions of world leaders in Tunisia, Egypt, and Yemen ...
and 2020 general elections) were Fianna Fáil and Fine Gael, the descendants respectively of the anti-treaty and pro-treaty forces of 1922. Until the 1970s, almost all of Ireland's prominent politicians were veterans of the Civil War, a fact which poisoned the relationship between Ireland's two biggest parties. Civil War veterans include Republicans Éamon de Valera, Frank Aiken, Todd Andrews and
Seán Lemass Seán Francis Lemass (born John Francis Lemass; 15 July 1899 – 11 May 1971) was an Irish Fianna Fáil politician who served as Taoiseach and Leader of Fianna Fáil from 1959 to 1966. He also served as Tánaiste from 1957 to 1959, 1951 to 1954 ...
; and Free State supporters W. T. Cosgrave, Richard Mulcahy and
Kevin O'Higgins Kevin Christopher O'Higgins (; 7 June 1892 – 10 July 1927) was an Irish politician who served as Vice-President of the Executive Council and Minister for Justice from 1922 to 1927, Minister for External Affairs from June 1927 to July 1927 a ...
.Seán Lemass's brother Noel, a captain in the Anti-Treaty IRA, was abducted and shot by Free State forces in July 1923, two months after the war had ended. His body was dumped in the
Wicklow Mountains The Wicklow Mountains (, archaic: '' Cualu'') form the largest continuous upland area in Ireland. They occupy the whole centre of County Wicklow and stretch outside its borders into the counties of Dublin, Wexford and Carlow. Where the mountai ...
, near Glencree, where it was found in October 1923. The spot where his body was found is marked by a memorial. O'Higgins was the Minister for Economic Affairs in the Free State government and was hated by Republicans for having been in favour of the execution of prisoners during the Civil War. His elderly father was killed by republicans during the war. O'Higgins himself was assassinated on his way to
mass Mass is an Intrinsic and extrinsic properties, intrinsic property of a physical body, body. It was traditionally believed to be related to the physical quantity, quantity of matter in a body, until the discovery of the atom and particle physi ...
in 1927 by Anti-Treaty IRA members. His killing precipitated a government clampdown on the IRA and forced Fianna Fáil to take the Oath of Allegiance in order to contest elections.
Moreover, many of these men's sons and daughters also became politicians, meaning that the personal wounds of the civil war were felt over three generations. In the 1930s, after Fianna Fáil took power for the first time, it looked possible for a while that the Civil War might break out again between the IRA and the pro-Free State
Blueshirts The Army Comrades Association (ACA), later the National Guard, Young Ireland and finally League of Youth, known by the nickname the Blueshirts (), was a paramilitary organisation in the Irish Free State, founded in 1932.New Irish Army Arises, Ne ...
. This crisis was averted, and by the 1950s violence was no longer prominent in politics in the Republic of Ireland. However, the breakaway IRA continued (and continues in various forms) to exist. It was not until 1948 that the IRA renounced military attacks on the forces of the southern Irish state when it became the Republic of Ireland. After this point, the organisation dedicated itself primarily to the end of British rule in Northern Ireland. The IRA Army Council still makes claim to be the legitimate Provisional Government of the Irish Republic declared in 1916 and annulled by the Anglo-Irish Treaty of 1921.


Fictional accounts

According to Edward Quinn, the play " Juno and the Paycock" by Seán O'Casey is a tragicomedy that criticises the civil war and the foolishness that led to it. Irish writer James Stephens says the play's theme is an "orchestrated hymn against all poverty and hate."Edward Quinn, ''History in Literature: A Reader's Guide to 20th Century History and the Literature It Inspired'' (2004), pp. 184–185.


Notes


Footnotes


Bibliography

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External links


Historical artefacts from the Irish Civil War

The Irish Story archive on the Irish Civil War




* ttp://www.ucc.ie/celt/published/E900003-001/ The Dáil Treaty Debates 1921–22. From the Official Report of the Parliamentary Debates of the
Houses of the Oireachtas The Oireachtas ( ; ), sometimes referred to as Oireachtas Éireann, is the bicameral parliament of Ireland. The Oireachtas consists of the president of Ireland and the two houses of the Oireachtas (): a house of representatives called Dáil É ...

List of National Army soldiers killed in action

War Memorials of the Civil War

Map of Europe
during Irish Civil War at omniatlas.com {{Ireland topics Civil wars involving the states and peoples of Europe Civil wars of the 20th century Guerrilla wars Monarchy in the Irish Free State Rebellions in Ireland Revolutions of 1917–1923 Wars involving Ireland Irish Free State 1922 in Ireland 1923 in Ireland