Fighting in Dublin quayside. The building was occupied by anti-treaty forces during the Civil War, whom the National Army subsequently bombarded into surrender. The Irish national archives in the buildings were destroyed in the subsequent fire. The building was badly damaged but was fully restored after the war. 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 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 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 – 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 Anti-Treaty IRA claimed that it was defending the Irish Republic declared in 1916 during the
Easter Rising, 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. 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. 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
shotguns 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. 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. 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 in
World War I, 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.
Guerrilla war Government victories in the major towns inaugurated a period of
guerrilla warfare. After the fall of Cork, Lynch ordered IRA units to disperse and form
flying columns 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 in the east and counties
Sligo and Mayo in the west. Sporadic fighting also took place around
Dundalk, where
Frank Aiken 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. 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 ,
County Kerry, designed by
Yann Goulet 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,
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 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 also supported the Free State, deeming it the lawful government of the country, denouncing the IRA and refusing to administer the
Sacraments 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 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, 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,
Todd Andrews,
Seán Gaynor and
Frank Barrett in the operation. It is often suggested by historians including Professor Michael Laffan of
University College Dublin, 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==