seamus dubhghaill

Promoting Irish Culture and History from Little Rock, Arkansas, USA

Category Archives: Wars & Rebellions


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Anti-Treaty IRA 4th Northern Division Attacks Dundalk

On August 16, 1922, three hundred men of the Anti-Treaty Irish Republican Army’s (IRA) 4th Northern Division, commanded by Frank Aiken, launches an attack on Dundalk in County Louth during the early phase of the Irish Civil War. This operation is part of a broader campaign by Anti-Treaty forces to resist the newly established Irish Free State army and to disrupt Free State control in the border counties.

By mid-1922, the Irish Civil War begins after the Anglo-Irish Treaty splits the IRA into pro- and anti-Treaty factions. The 4th Northern Division, based in counties Armagh, Down, and Louth, is one of the most formidable Anti-Treaty units in the region. Frank Aiken, a veteran IRA commander, has rebuilt this division during the Truce period, using it for guerrilla operations and border raids.

The Free State Army, under the National Army, is consolidating control in southern and midland counties, while Anti-Treaty forces focus on border counties to prevent Free State expansion and to maintain resistance.

The August 16 assault on Dundalk is a border raid aimed at disrupting Free State supply lines and communications, isolating and weakening Free State positions in the Louth area and demonstrating Anti-Treaty strength to other IRA units and the wider population. They use two mines to breach the walls of the barracks and temporarily take over the town.

Seven Free State soldiers are killed and fifteen are wounded. Two republicans are killed, accidentally by one of their own mines, and thirty are wounded. About 240 republican prisoners are freed from the prison and 400 rifles are taken. Aiken, however, does not try to hold the town and, while in possession of it, calls for a truce in a meeting in the town square.

While the attack is significant in symbolic terms, it does not achieve a decisive strategic breakthrough. Free State forces are able to regroup and counterattack, and the operation highlights the challenges Anti-Treaty units face in sustaining large-scale offensives against a better-equipped and more mobile National Army.

The raid exemplifies the “war along the border” strategy, where Anti-Treaty forces target Free State-held border towns and infrastructure. Aiken’s leadership as commander of the 4th Northern Division underscores his reputation as a skilled guerrilla leader. The attack reflects the early Civil War pattern of small-scale, mobile raids by Anti-Treaty forces against Free State-held towns and garrisons.

In summary, the August 16, 1922, Dundalk attack is a notable Anti-Treaty IRA operation that showcases the 4th Northern Division’s capabilities but also the limitations of their conventional-style assaults against the Free State’s growing military presence.

(Pictured: Frank Aiken and the 4th Northern Division of the Irish Republican Army)


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Oliver Cromwell Sets Sail for Ireland

Oliver Cromwell, English statesman, farmer and soldier, sets sail from Milford Haven, Pembrokeshire, Wales, on August 13, 1649, with a fleet of about 35 ships, accompanied by a second and third flotilla that arrives days later. The invasion marks the beginning of the Cromwellian conquest of Ireland, a brutal four-year campaign (1649–1653) that reshapes the island’s political and demographic landscape.

By 1649, England is in the midst of the English Civil War. The execution of King Charles I in January leaves the Commonwealth of England under Cromwell’s leadership. Ireland, already embroiled in the Irish Confederate Wars, has become a battleground between Irish Catholic Confederates allied with the exiled Charles II, Royalist forces under James Butler, Earl of Ormonde, and  Parliamentarian forces led by Cromwell and his son-in-law Henry Ireton.

Cromwell’s landing at Dublin is swift but not without hardship—seasickness plagues him during the voyage. He lands with around 9,000–20,000 troops, stores, and £20,000 in cash. His early actions include the Siege of Drogheda (September 10, 1649) where, following a prolonged cannonade, his forces breach the town’s defenses. On September 11, the entire garrison—about 8,000 men, including English troops, Irish soldiers, and civilians—is massacred, including commander Sir Arthur Aston. Early actions also include the Sack of Wexford (October 1649). Despite Cromwell’s public justification for the slaughter, Wexford’s garrison and civilians are killed in a similar manner.

Over the next four years, Cromwell’s forces defeat the Irish Confederacy by late 1650, engage in widespread plunder, executions, and displacement of Catholic populations, confiscate large tracts of Catholic land for Protestant settlers under the Cromwellian Plantation, and introduce the Act for the Settlement of Ireland 1652, barring Catholics from most public offices and redistributing land.

Modern estimates suggest 15–40% of Ireland’s pre-1641 population perishes due to warfare, famine, and disease. The campaign entrenches Protestant dominance in Ireland and leaves deep scars in Irish memory.

Cromwell’s invasion is remembered in Ireland as a symbol of English conquest and sectarian violence. While some historians argue his actions are within contemporary military norms, many see them as part of a broader pattern of colonial subjugation. The detailed land surveys he orders—mapping every parish and barony—become a tool for land redistribution, shaping Ireland’s political and economic structure for centuries.

In short, August 13, 1649, is the start of a campaign that not only ends Irish Catholic political power but also alters the island’s demographic and cultural fabric for generations.


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Liam Lynch & the Anti-Treaty IRA Abandon Fermoy

On August 11, 1922, Liam Lynch, Chief of Staff of the Anti-Treaty Irish Republican Army (IRA), abandons Fermoy — the last major republican-held town in County Cork — as the Free State forces advance. This marks a significant turning point in the Irish Civil War, symbolizing the collapse of the IRA’s last strongholds in County Cork.

By mid-1922, the Anti-Treaty IRA is in retreat after the Anglo-Irish Treaty has split the IRA into pro- and anti-Treaty factions. Lynch, a staunch opponent of the Treaty, had been appointed Chief of Staff in April 1922 to unify the Anti-Treaty leadership. Fermoy, a key County Cork town, has been a republican stronghold since the Irish War of Independence, but by August 1922, it is under increasing pressure from Free State troops.

Fermoy’s surrender is not a single battle but a series of engagements and encirclements. Free State forces have been systematically dismantling republican positions in County Cork, and Fermoy’s defenses are proving unsustainable. Lynch, recognizing the strategic and tactical inevitability of defeat, orders the withdrawal of IRA forces from the town. This move effectively ends the IRA’s presence in Cork city and its surrounding areas.

Fermoy’s fall is a strategic loss as it removes the last major republican-held town in County Cork, cutting off supply lines and communication with other Anti-Treaty strongholds. The abandonment underscores the crumbling of the Anti-Treaty position and the Free State’s consolidation of control over the south. It also results in a leadership shift as Lynch’s decision reflects his pragmatic approach — while ideologically opposed to the Treaty, he seeks to avoid further bloodshed and preserve the IRA’s remaining forces.

Following Fermoy’s fall, Lynch continues to command the Anti-Treaty IRA from the south, but without a major base. His leadership soon faces further challenges, culminating in his death on April 10, 1923, during a pursuit by Free State troops in the Knockmealdown Mountains.

In short, the abandonment of Fermoy on August 11, 1922, is both a military and symbolic end to the Anti-Treaty IRA’s last stronghold in County Cork, accelerating the end of the Irish Civil War.

(Pictured: IRA Chief of Staff Liam Lynch, shortly before the start of the Civil War. Photo © RTE Photographic Archive)


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The Free State Seaborne Landings in Cork

On the morning of August 8, 1922, the National Army of the Irish Free State launches a decisive seaborne assault on Cork, County Cork, the Free State’s second largest city, which is held by anti-Treaty Irish Republican Army (IRA) forces. The operation begins at Passage West, a ferry port and fishing village on the estuary of the River Lee, where the steamship Arvonia docks. The anti-Treaty IRA garrison in Cobh across the bay opens fire with three machine guns, but the National Army troops on deck respond with silence, surprising the sentry who had fired a warning shot.

Over 200 pro-Treaty soldiers disembark, quickly securing the town. The Arvonia is unloaded with 450 troops, an 18-pounder field gun, and several armoured cars. Simultaneously, landings are made at Youghal in east County Cork and Union Hall near Skibbereen in west County Cork, disgorging another 350 troops. This is part of Michael Collins’s plan to seize Cork and end the Irish Civil War swiftly.

Cork is a flashpoint of the Treaty split. While the majority of IRA fighters in the county oppose the Anglo-Irish Treaty, the majority of civilians support it. There are also strong neutral tendencies and peace calls within Cork’s civil and military communities. The Free State’s move aims to break the “Munster Republic” stronghold and force a rapid political settlement.

The landing marks the start of the Battle for Cork, which intensifies over the next days. National Army forces advance toward Cork city, encountering fierce resistance from anti-Treaty IRA positions in areas like Rochestown, Oldcourt Wood, and Garryduff. The fighting is brutal, with estimates of up to 20 fatalities and many wounded. The conflict also produces poignant moments, such as the death of Free State soldier Flood, shot by a former Irish War of Independence comrade, Frank O’Donoghue.

The August 8 landings are the decisive military stroke of the Irish Civil War. They re-take Cork for the Irish Free State, dismantle the Munster Republic, and end the conventional phase of the conflict, paving the way for a prolonged guerrilla war until the anti-Treaty side’s defeat. The event remains a key moment in Irish revolutionary history, remembered for its scale, the use of armoured units, and the deep divisions it exposes in Cork.


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Death of IRA Volunteer Joe Hudson

On August 7, 1922, Joe Hudson (also known as “Sonny” Hudson), an anti-Treaty Irish Republican Army (IRA) volunteer from Glasthule, Dún Laoghaire, is shot dead in his garden at 3 Carrolls Cottages by an Irish Free State Army (National Army) officer. He is in command of a small anti‑Treaty IRA group active in the area, operating from Glasthule down to Bray and across to Deansgrange.

Free State Army officers, acting on intelligence that a meeting is in progress at Hudson’s home, leave Portobello Barracks (now Cathal Brugha Barracks) in two cars. As they approach, a Fianna Éireann member on sentry duty blows his whistle, alerting the occupants. The group scatters through the back garden, and Hudson is injured, dropping his weapon. A Free State Army officer approaches him at point‑blank range and shoots him.

At the time of his death, Hudson reportedly has his hands up, and he makes a deathbed declaration to that effect. An automatic pistol is found with him, but it is loaded with the wrong calibre ammunition, suggesting he could not have fired it.

Hudson’s killing occurs during a period of intense guerrilla warfare in south County Dublin. The area had seen earlier clashes between pro‑ and anti‑Treaty forces, and by August 1922, anti‑Treaty IRA columns are active in Dún Laoghaire and surrounding towns. His death is part of a broader campaign by Irish Free State forces to suppress anti‑Treaty resistance in the region.

Hudson’s case is remembered as one of the more controversial incidents of the Irish Civil War, reflecting the brutality and political divisions of the conflict. His father, Joseph Hudson Snr, was also an IRA volunteer.


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Anti-Treaty IRA Attempts to Isolate Dublin

In the early morning of August 5, 1922, during the Irish Civil War, around 200 anti-Treaty Irish Republican Army (IRA) volunteers are mobilised around Dublin. Their mission is to isolate the city by destroying all bridges and road crossings leading into it, cutting off Free State forces and supplies.

The anti-Treaty IRA, opposed to the Anglo-Irish Treaty and the newly established Irish Free State, aim to dismantle the stone bridges over Dublin’s rivers and canal, lay explosives on road and railway bridges, dig trenches in roads to block movement and scout the surrounding countryside for Free State troops.

They are organised in groups of 5–40, some armed with handguns and grenades, others with explosives and tools like spades and picks. Parties are sighted in the hills south of the city (from Kilakee to Roundwood) and across villages north of Dublin (from Raheny to Blanchardstown).

The Free State’s intelligence service intercepts the plan when Liam Clarke, a captured anti-Treaty officer, reveals the details to Free State Intelligence officers. This intelligence allows the Free State to anticipate and counter the operation.

On August 6, Free State forces move quickly to intercept the IRA. They capture 31 anti-Treaty irregulars at Glencullen Bridge (pictured) and later take 104 fighters in County Dublin, including officer Pat Sweeney. These actions cripple the remnants of the anti-Treaty IRA in Dublin and prevent the city from being isolated.

The “Bridges Job” is a major anti-Treaty attempt to cut off Dublin during the Irish Civil War. Its failure marks a turning point, as Free State forces can now move freely into the city, accelerating the end of the conventional phase of the conflict.


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Irish Free State Army’s Seaborne Landing at Fenit, County Kerry

On Wednesday, August 2, 1922, the Irish Free State’s National Army launches a seaborne landing at Fenit pier, County Kerry, marking the first of a series of amphibious assaults in the Cork and Kerry campaign. The operation is conceived by Major General Emmet Dalton as a way to strike at the anti-Treaty Irish Republican Army’s (IRA) “Munster Republic” from the rear, exploiting the element of surprise to shorten the war.

By mid-July 1922, the Free State has re-taken counties Limerick and Waterford, but the IRA still controls counties Cork and Kerry, as well as much of the west under Liam Lynch’s command. A purely land-based advance into these areas risks long, attritional battles. Dalton’s plan is to create a second front by landing troops along the County Kerry and County Cork coasts, isolating republican strongholds like Tralee.

The SS Lady Wicklow carries 450 soldiers of the Dublin Guard brigade under Paddy Daly, along with a field gun and an armoured car nicknamed the Ex-Mutineer. The Dublin Guards are considered the most disciplined and politically reliable unit in the Army, and Daly is one of Michael Collins’ trusted lieutenants. The landing is intended to secure Fenit as a base for an amphibious assault on Tralee, a key republican stronghold.

The surprise attack catches the IRA forces off guard, taking their left flank in the rear. The Free State quickly advances, and by the following days, much of County Kerry is freed from republican control. The operation is part of a broader offensive that culminates in the capture of Tralee on August 2, one of the bloodiest single days of combat for the National Army.

While the initial landings are successful, the IRA mounts counterattacks over August and September, regaining some ground. However, the Free State’s superior resources, better equipment, and lack of popular support for the republicans allows them to consolidate control in County Kerry over time. The Fenit landing is a turning point, shifting the momentum in favour of the Free State and contributing to the eventual republican defeat in the Irish Civil War.

In summary, the August 2, 1922, naval landing at Fenit is a bold, surprise amphibious operation that disrupts republican defenses, opens County Kerry to Free State advance, and alters the course of the Irish Civil War.

(Pictured: Free State troops landing at Fenit, County Kerry, on August 2, 1922)


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Diarmait Mac Murchada is Defeated in Battle by Ruaidrí Ua Conchobair

On August 1, 1166, Diarmait Mac Murchada (anglicised Dermot MacMurrough), King of Leinster, is defeated in battle by Ruaidrí Ua Conchobair (anglicised Rory O’Conor), who has recently become High King of Ireland. This defeat is a decisive blow to Mac Murchada’s power and marks the end of his reign as an independent ruler.

Mac Murchada has ruled Leinster since 1126 and is a powerful and ambitious king. He is an ally of Muirchertach Mac Lochlainn, High King of Ireland, but their alliance is strained by rivalries and political maneuvering. In 1166, Mac Lochlainn’s own position is weakened after his subjects rebel and kill him, and Mac Murchada is next in Ua Conchobair’s line of succession.

Ua Conchobair, now High King, turns his attention to eliminating rivals. On August 1, 1166, Mac Murchada is defeated in open battle and forced to flee Ireland. His expulsion is a critical turning point as it strips him of his kingdom and leaves him without a base to rule.

In exile, Mac Murchada seeks help from King Henry II of England. He promises to swear fealty to Henry and grant land in Ireland in exchange for military support to reclaim his throne. Henry allows him to enlist the aid of Richard de Clare, 2nd Earl of Pembroke (“Strongbow”), and other Norman lords from South Wales.

Mac Murchada returns to Ireland in 1167 with an advance party of Anglo-Normans. In 1170, Strongbow arrives with a larger force, and together they capture Dublin. Mac Murchada marries his daughter, Aoife (Eva), to Strongbow, and upon his death in 1171, Strongbow succeeds as ruler of Leinster.

Mac Murchada’s defeat and subsequent alliance with the Normans initiates the Anglo-Norman invasion of Ireland, a process that leads to centuries of English political and military involvement in the country. His actions are remembered as a pivotal moment in Irish history, with complex legacies — seen by some as a desperate ruler trying to restore his throne, and by others as a traitor who opens the door to foreign domination.

In summary, August 1, 1166, is the day Diarmait Mac Murchada is overthrown by Ruaidrí Ua Conchobair, leading to his exile and ultimately setting in motion the Norman conquest of Ireland.

(Pictured: Diarmait Mac Murchada)


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French Directory Authorizes Troops to Ireland

On July 19, 1798, the French Directory formally authorizes the dispatch of three expeditions to Ireland to support the United Irishmen in their rebellion against British rule. This decision comes after years of political and military planning, with the Irish republican movement—led by figures such as Theobald Wolfe Tone—urging French intervention to spark a widespread uprising.

The Irish Rebellion of 1798 has been suppressed in the east by British forces, but unrest continues in the west. The French Directory, influenced by Enlightenment ideals and shared revolutionary sympathies with the United Irishmen, see an opportunity to strike a blow against Britain and inspire Irish republicanism. The plan is to land French troops in Ireland to provide military aid to the rebels, incite a general uprising and potentially use Ireland as a staging ground for further operations against Britain.

The July 19 authorization marks the final political clearance for the operation. The first expedition is entrusted to General Jean Joseph Amable Humbert (pictured), a veteran of irregular warfare against the Vendéen insurgents. The force is small—about 1,025 French troops, three light field cannons, 3,000 muskets, and 400 sabres—but includes Irish allies such as Bartholomew Teeling and Fr. Henry O’Kane, who help spread the news of the landing.

On August 6, 1798, Humbert’s three frigates—La Concorde, La Franchise, and La Médée—sail from La Rochelle, taking a circuitous route to avoid British naval detection. They land at Killala Bay, County Mayo, where they quickly take control of the town, hoisting the French flag and rallying local Irish recruits.

Humbert’s landing in Killala, known locally as Bliadhan na bhFrancach (“The Year of the French”), sparks a brief but significant phase of the Rising. His forces achieve notable victories, such as the Races of Castlebar, but ultimately cannot sustain momentum against the British response. Humbert surrenders to British forces at Ballinamuck, County Longford, on September 8, 1798.

In summary, the July 19, 1798, authorization by the French Directory is the decisive political step that enables Humbert’s small but symbolic invasion of Ireland, which, though militarily limited, becomes a potent symbol of French-Irish revolutionary solidarity.


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Free State Troops Arrive in Waterford to Retake the City

On July 18, 1922, Free State commander General John T. Prout leads a pro‑Treaty force of about 700 troops, one 18‑pounder field gun, and four armoured cars from Kilkenny, County Kilkenny, toward Waterford, County Waterford. This is part of the Irish Free State offensive (June 28 – late August 1922), which aims to retake major towns held by anti‑Treaty Irish Republican Army (IRA) forces in the south and southwest of Ireland.

At the start of the Irish Civil War in June 1922, the Free State controls only Dublin. Anti‑Treaty forces, forming the so‑called Munster Republic, hold Cork, Limerick, and Waterford, along with much of the west. Waterford’s republican garrison has fortified the city, dismantled the drawbridge’s control equipment, and isolated the port by removing wireless and other communications.

On July 16, republican forces learn that Free State troops ae moving toward Waterford. They raise the drawbridge early and move vessels from the Kilkenny side to the Waterford side. On July 18, Prout’s column is spotted from Sallypark Hill, prompting republican machine gun and rifle fire. A Free State volunteer, Costeloe, is wounded and later dies.

From July 19, sniping continues across the River Suir. On July 19, the Free State brings the 18‑pounder artillery into position overlooking the city, bombarding republican positions. The republicans hold key buildings such as the Adelphia Hotel, Country Club, and Reginald’s Tower.

By July 21, Free State forces cross the River Suir downstream at Gyles Quay, enter the city, and drive out republican troops from their positions. The drawbridge on Redmond Bridge is lowered by hand, and republican reinforcements from Cork and Tipperary either withdraw or do not engage. The Free State takes Waterford on July 21, 1922, ending the republican hold on the city.

Two anti‑Treaty volunteers, Maurice McGrath and John “Bonny” Boyle, are killed. Two Free State soldiers, Sergeant James Howlett and Michael Costelloe, are killed. At least six civilians are killed, including Joseph Dwan, William Long, and a 10‑year‑old girl. Many civilians are wounded.

The fall of Waterford marks a key Free State victory in the conventional phase of the Irish Civil War, contributing to the re‑capture of major southern cities and paving the way for the later guerrilla phase.

(Pictured: John T. Prout at his wedding to Limerick native Mary Conba at St. John the Evangelist Church (O’Loughlin Memorial Church), Kilkenny, July 12, 1922)