Bloody Sunday was one of the most significant events to take place during the Irish War of Independence,, which followed the formation of a unilaterally declared Irish Republic,and its parliament, Dail Eireann. The army of the republic, the Irish Republican Army waged a guerrilla war against the Royal Irish Constabulary (RIC), its auxiliary organisations and the British Army,, who were tasked with suppressing the Irish liberation movement. Some members of the GAA which owned Croke Park were confirmed Nationalists, but others were not.
In response to IRA actions, the British Government formed paramilitary forces to augment the RIC, the “Black & Tans” (a nickname possibly arising from their mixture of uniforms), and the Auxiliary Division (generally known as the Auxiliaries or Auxies). The behaviour of both groups immediately became controversial (one major critic was King GeorgeV) for their brutality and violence, not just towards IRA suspects and prisoners but towards Irish people in general. In Dublin, the war largely took the form of assassinations and reprisals on either side.
The events on the morning of 21 November were an effort by the IRA in Dublin, under Michael Collins and Richard Mulcahy to wipe out the British intelligence organisation in the city.
Since 1919, Irish Finance Minister, head of the secretive Irish Republican Brotherhood and IRA Chief of Intelligence Michael Collins had operated a clandestine squad of IRA members in Dublin (a.k.a. “The Twelve Apostles”), which was used to assassinate RIC and British Intelligence officers. By late 1920, British Intelligence in Dublin, including what was known as the “Cairo Gang” (the nickname came from their patronage of the Cairo Cafe on Grafton Street and from their service in British military intelligence in Egypt and Palestine during the first world war),eighteen high-ranking British Intelligence officers, had established an extensive network of spies and informers around the city. Mulcahy, the IRA Chief of Staff, described it as, “a very dangerous and cleverly placed spy organisation”.
In November 1920, Collins ordered the assassination of British agents around the city, judging that if they did not do this, the IRA’s organisation in the capital would be in grave danger. The IRA was also of the opinion that a coordinated policy of assassination of leading republicans was being implemented by members of the security services. Dick McKee was put in charge of planning the operation. The addresses of the British agents were discovered from a variety of sources, including sympathetic housemaids, careless talk from some of the British, and an IRA informant in the RIC (Sergeant Mannix) based in Donnybrook barracks. On November 20, the assassination teams, which included the Squad and members of the IRA’s Dublin Brigade, were briefed on their targets, who included 20 agents at eight different locations in Dublin.Collins’s plan had been to kill over 50 British intelligence officers and informers, but the list was reduced to 35 on the insistence of Cathal Brugha, the Irish Minister for Defence, on the grounds that there was insufficient evidence against some of those named.
Early on the morning of 21 November, the IRA teams mounted the operation. Most of the killings occurred within a small middle-class area of south inner-city Dublin, with the exception of one shooting at the Gresham Hotel on o’Connell street. At 28 Upper Pembroke Street, four agents were killed. At 22 Lower Mount Street, one British officer was killed and another narrowly escaped. The building was surrounded by Auxiliaries, alerted by the firing, and in the ensuing gun fight two Auxiliaries were killed and one IRA man, Frank Teeling, was wounded and captured. Future Irish Taoiseach,Sean lemass was involved in the killing of a Captain Bagely, also on Mount Street, while in two further incidents on the same street three more British agents were killed. Only a few streets away, further shootings took place on Baggot Street, Fitzwilliam street, Morehampton Road and Earlsfort Terrace.
In all, 13 people were killed and 6 wounded, including suspected agents and those with no connection to politics, and two Auxilaries. Four of the British casualties were military intelligence officers and another four were Secret Service or Mi5 agents. Only one Squad member was captured, Frank Teeling, and he managed to quickly escape from gaol.One more IRA man was slightly wounded in the hand. However, out of the 35 people on Collins’ hit list, only about a third had been killed. IRA man and future Irish politician, Todd Andrews recalled later, “the fact is that the majority of the IRA raids were abortive. The men sought were not in their digs or in several cases, the men looking for them bungled their jobs”.Nevertheless the action terrified and crippled British intelligence in Ireland, causing many other agents and informers to flee for Dublin Castle, and caused consternation in the British administration.
Collins justified the killings in this way:
My one intention was the destruction of the undesirables who continued to make miserable the lives of ordinary decent citizens. I have proof enough to assure myself of the atrocities which this gang of spies and informers have committed. If I had a second motive it was no more than a feeling such as I would have for a dangerous reptile. By their destruction the very air is made sweeter. For myself, my conscience is clear. There is no crime in detecting in wartime the spy and the informer. They have destroyed without trial. I have paid them back in their own coin.
Below is an article by Irish Volunteer member Chris Keane,