A good place to start is here – The Irish Civil War, an overview.
And: Why Was there A Civil War in Ireland?, by John Dorney
The Treaty and the split
The Treaty Debates, December 14 1921- January 7 1922 by John Dorney
22 June 1922, The Assassination of Sir Henry Wilson – the killing that sparked off the Civil War.
January 16 1922, the handover of Dublin Castle -or was it? By John Dorney
The Course of the War
The Irish Civil War – A Short Military History, by John Dorney
28 June 1922, the First Day of the Civil War, by John Dorney
The Killurin ambush, Wexford, 24 July 1922, by Aaron O Maonaigh
The ‘Bridges Job’ – a disastrous defeat for the IRA in Dublin on August 5-6 1922.
The Cork Landings, August 8-10, 1922, by John Dorney
Wellington Barracks – A Microcosm of the Irish Civil war – a look at the experiences of one barracks of pro-Treaty troops in Dublin during the war.
British Military Involvement in the Irish Civil War. How British military aid and at times assistance all but decided the civil war.
‘A Damn good clean fight’ The Last Stand of the Leixlip Flying Column, an anti-Treaty column is trapped and wiped out in Kildare.
The Dalkey column, the Civil War in south-east Dublin
The Tragedies of Ballyconnell – a series of raids and reprisal in the border area in 1923.
March 1923 – The terror month, A month of grisly atrocities in Kerry.
10 April 1923, Liam Lynch is killed, by John Dorney.
Weapons of the Irish Civil War, by John Dorney
Executions and assassinations
The Passing of the Public Safety Act – 27 September 1922 – legislation allowing for military courts and execution of republican prisoners.
The Assassination of Sean Hales and reprisal executions, the killing of Sean Hales TD and the shooting in reprisal of four leading republicans.
The Red Cow Murders revisited, October 7, 1922, by john Dorney.
Who Shot Frank Lawlor? – an article about assassinations in Dublin during the civil war.
Who Was Seamus Dwyer? – on the assassination of leading pro-Treaty politician, article by Michael McKenna.
The Drumboe Martyrs – Kieran Glennon tells the story of his grandfather’s role in the execution of three republicans in Donegal in 1923.
The Civil War and society
Michael Collins, the Dictator? by John Dorney
Thinking about Violence in the Irish Civil War, by John Dorney, an essay on the nature of civil war violence.
The Postal Strike of 1922 – a major industrial dispute at the height of the civil war, which the government put down by use of the National Army.
‘A Riot of Plunder’ Rural revolt in 1922, by Terry Dunne
The Big House and the Irish Revolution. How the republicans systematically destroyed the houses of the old Anglo-Irish landed class during the civil war.
The Burning of the Big Houses Re-Visited, a follow up article on the burnings by John Dorney.
Roundup at Midnight Mass, 1922, a story of the Catholic church and the republicans in Kerry in the civil war.
‘Rough and Ready Work’ – The Special Infantry Corps, a corps raised to put down social disorder, by John Dorney
The IRA’s War on Public Entertainment, Liam Lynch’s ‘Amusement Order’
Career (Mis)Adventurers, The IRB in the Free State Army, by Daniel Murray.
The IRB among the anti-Treatyites, by Daniel Murray.
Policing Revolutionary Dublin 1919-1923, by John Dorney.
Off to Fight for the Republic, the propaganda cartoons of Constance Markievizc, by Alison Martin.
The Boys of the Old Brigade, The IRA Third Northern Division, by Kieran Glennon.
Internment aboard the Prison Ship Argenta, by Anne Marie McInerney
Women and the Irish Revolution, by John Dorney.
The Strange Case of Lord Massey by John Dorney
The Rise and Fall of the Dail Courts, by John Dorney
The Army Mutiny of 1924 and the Army Inquiry by John Dorney
The General Strike Against Militarism, April 1922, by John Dorney
Counting the cost
Casualties of the Civil War in Dublin– By John Dorney
Civil War Casualties in Tipperary, by John Dorney
Civil War Casualties in County Cork, by John Dorney
Civil War Casualties in County Limerick, By John Dorney
Civil War Casualties in County Wicklow, by Aaron O Maonaigh
Making Sense of the Irish Civil War – A conversation with Gavin Foster.
Interview with John Dorney on ‘The Civil War in Dublin’ book, with Cathal Brennan.
History Wars – John Regan discusses, among other things, the debates over the civil war among historians.
The Civil War in Dublin, with Cathal Brennan and John Dorney.
Interview about the Ballyseedy masssacre, with John Dorney
The Irish Civil War – Divisive Memory, with Declan Power and Michael MacDonnacha.
Republican Policing with Brian Hanley
The Civil War Memory Project with Criostóir MacCárthaigh
Article on John Dorney’s The Civil War in Dublin.
The battle for Cork City, by John Borgonovo.
The Fall of Dublin by Liz Gillis.
The Story of the Irish Civil War, by John Dorney
The battle of Limerick City, and the Summer Campaign in Kerry, By Padraig Og O Ruairc and Tom Doyle respectively.
Sligo: The Irish Revolution 1912-1923 by Michael Farry.
From Pogrom to Civil War by Kieran Glennon.
The Flame and the Candle, War in Mayo by Dominic Price.
Judging W.T. Cosgrave, by Michael Laffan.
The Irish Civil War and Society, by Gavin Foster.
Emmet Dalton, by Sean Boyne.
Everyday Violence in the Irish Civil War, by Gemma Clark.
The Irish Civil War, Law, Executions and Atrocity, by Sean Enright
Birth of a State, The Anglo Irish Treaty by Liam Weeks and Michael O Fatharataigh
Spiritual Wounds, Trauma Testimony and the Irish Civil War, by Siobhra Aiken
Report on the Irish Civil War Conference in Drogheda, September 2012. By Cathal Brennan.
Report on the Civil War Conference in Athlone, November 2013, by John Dorney
Report on Military Archives talk, ‘Establishing the Free State in conflict‘ includes estimates of the war’s death toll.