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This is a list of conflicts in Ireland, including wars, armed rebellions, battles and skirmishes. Irish Warriors participated in many wars in Europe and “England” as well and are not completely recognized on this page.

The Annals of the Four Masters, written in the 17th century, records a number battles as having taken place in prehistoric Ireland. These include:

• 2530 AM (Anno Mundi) – Battle of Mag Itha, the first recorded battle in Ireland^[1]
• 3304 AM – First Battle of Magh Tuireadh^[2]
• 3330 AM – Second Battle of Magh Tuireadh^[2]
• 76 AD (Anno Domini) – Battle at the hill of Achall (Túathal Techtmar defeats Elim mac Conrach)^[3][4]
• 195 AD – Battle of Maigh Mucruimhe^[5]
• 226 AD – Crinna, in Brega^[5]
• 283 AD – Cath Gabhra (the Battle of Gowra)^[6]
• 331 AD – Battle of Achadh Leith-dheirg^[7][8][9]

• 459 – Ath Dara^[10][11]
• 464 – First Battle of Dumha Aichir ^{[citation needed]}
• 468 – Bri Ele ^{[citation needed]}
• 470 – Second Battle of Dumha Aichir ^{[citation needed]}
• 476 – First Battle of Granard ^{[citation needed]}
• 478 – Ocha ^{[citation needed]}
• 480 – Second Battle of Granard ^{[citation needed]}
• 483 – Battle of Ochae ^{[citation needed]}
• 489 – Tailtin ^{[citation needed]}
• 491 – Cell Losnaid ^{[citation needed]}
• 492 – Sleamhain, in Meath ^{[citation needed]}
• 493 – Battle for the Body of St. Patrick^[12]
• 494 – Ceann Ailbhe ^{[citation needed]}
• 496 – Druim Lochmaighe ^{[citation needed]}
• 497 – Inde Mor, in Crioch Ua nGabhla ^{[citation needed]}
• 499 – Seaghais ^{[citation needed]}

• 500 – Lochmagh ^{[citation needed]}
• 501 – Freamhain, in Meath ^{[citation needed]}
• 506 – Luachair ^{[citation needed]}
• 507 – Druim Deargaighe ^{[citation needed]}
• 528 – Luachair ^{[citation needed]}
• 531 – Claenloch ^{[citation needed]}
• 537 – Sligeach ^{[citation needed]}
• 544 – Cuil Conaire ^[13]
• 546 – Cuilne ^{[citation needed]}
• 556 – Cuil Uinnsenn ^{[citation needed]}
• 560 – Battle of Cúl Dreimhne ('Battle of the Book')^[14][15]
• 561 – Cul Dremne ^{[citation needed]}
• 563 – Moin Dairi Lothar ^{[citation needed]}
• 571 – Battle of Tola ^{[citation needed]}
• 572 – Battle of Doete ^{[citation needed]}
• 579 – Druim Mic Earca ^{[citation needed]}
• 585 – Kalketh ^{[citation needed]}
• 590 – Eadan Mor ^{[citation needed]}
• 594 – Dun Bolg ^{[citation needed]}
• 597 – Battle of Sleamhain ^{[citation needed]}
• 598 – Eachros ^{[citation needed]}

• 600 – Loch Semhedidhe ^{[citation needed]}
• 601 – Battle of Slaibhre ^{[citation needed]}
• 622 – Carn Fearadhaigh ^{[citation needed]}
• 622 – Lethed Midinn ^{[citation needed]}
• 624 – Ard Corainn ^{[citation needed]}
• 626 – Leathairbhe ^{[citation needed]}
• 628 – Ath Goan ^{[citation needed]}
• 634 – Magh Rath ^{[citation needed]}
• 637 – Battle of Moira^[16]
• 645 – Carn Conaill ^{[citation needed]}
• 648 – Cuil Corra ^{[citation needed]}
• 656 – Fleasach ^{[citation needed]}
• 660 – Ogamhain ^{[citation needed]}
• 666 – Battle of Aine ^{[citation needed]}
• 681 – Bla Sléibe ^{[citation needed]}
• 685 – Cenn Conn ^{[citation needed]}
• 686 – Leach Phich ^{[citation needed]}
• 688 – Imlech ^{[citation needed]}
• 696 – Tulach Garraisg ^{[citation needed]}

• 701 – Corann ^{[citation needed]}
• 702 – Claen Ath ^{[citation needed]}
• 713 – Cam Feradaig ^{[citation needed]}
• 718 – Battle of Almhain ^{[citation needed]}
• 719 – Delgean ^{[citation needed]}
• 721 – Druim Fornocht ^{[citation needed]}
• 724 – Cenn Deilgden ^{[citation needed]}
• 727 – Magh Itha ^{[citation needed]}
• 730 – Bealach Ele ^{[citation needed]}
• 732 – Fochart ^{[citation needed]}
• 733 – Battle of Ath Seanaith ^{[citation needed]}
• 738 – Ceanannus ^{[citation needed]}
• 744 – Ard Cianachta ^{[citation needed]}
• 749 – Ard Naescan ^{[citation needed]}
• 751 – Bealach Cro ^{[citation needed]}
• 759 – Dun Bile ^{[citation needed]}
• 762 – Caill Tuidbig ^{[citation needed]}
• 766 – Cath Sruthair^[17]
• 769 – Bolg Boinne ^{[citation needed]}
• 781 – Ath Liacc Finn ^{[citation needed]}
• 787 – Ard Mic Rime ^{[citation needed]}

• 800 – Ardrahan ^{[citation needed]}
• 820 – Carn Conain ^{[citation needed]}
• 845 – Dunamase ^{[citation needed]}
• 848 – Battle of Skryne ^{[citation needed]}
• 851 – Battle of Dundalk ^{[citation needed]}
• 877 – Battle of Strangford Lough

• 908 – Battle of Bellaghmoon
• 917 – Battle of Confey
• 919 – Battle of Islandbridge
• 967/8 – Battle of Sulcoit
• 967/8 – Burning of Luimnech
• 977/8 – Battle of Cathair Cuan
• 978 – Battle of Belach Lechta
• 980 – Battle of Tara
• 994 – Sack of Domhnach Padraig ^{[citation needed]}
• 994 – Sack of Aenach Thete ^{[citation needed]}
• 999 – Battle of Glenmama

• 1014 – Battle of Clontarf
• 1086 – Breach of Crinach ^{[citation needed]}
• 1087 – Conachail, in Corann
• 1087 – Rath Edair ^{[citation needed]}
• 1088 – Corcach ^{[citation needed]}
• 1090 – Magh Lena, in Meath ^{[citation needed]}
• 1094 – Bealach Gort an Iubhair ^{[citation needed]}
• 1094 – Fidhnacha ^{[citation needed]}
• 1095 – Ard Achad ^{[citation needed]}
• 1098 – Fearsat-Suilighe ^{[citation needed]}
• 1099 – Craebh Tulla ^{[citation needed]}

• 1101 – Battle of Grianan ^{[citation needed]}
• 1103 – Battle of Magh Cobha^[18]
• 1132 – Siege of Dún Béal Gallimhe
• 1149 – Siege of Dún Béal Gallimhe
• 1151 – Battle of Móin Mhór
• 1169/05 – Beginning of the Norman invasion of Ireland
• 1169/05 – Battle of Duncormac, County Wexford – Norman victory over a combined Irish-Norse force
• 1169/05 – Siege of Wexford – Norman victory over a combined Irish-Norse force
• 1169/05 – Battle of Gowran – Norman defeat
• 1170/05 – Battle of Dundonnell (aka Battle of Baginbun), County Wexford – Norman victory over a combined Irish-Norse force
• 1170/08 – Battle of Waterford – Norman victory over a combined Irish-Norse force
• 1170/09 – Sack of Dublin – Norman victory over a combined Irish-Norse force
• 1171/08 – Siege of Dublin – Norman victory
• 1171 – Battle of Carrick – Norman defeat
• 1173 – Battle of Kilkenny – Norman defeat
• 1174 – Battle of Thurles – Norman defeat
• 1175 – Battle of Meath – Norman victory
• 1175 – Battle of Athlone – Norman victory
• 1175 – Battle of Drogheda – Norman victory
• 1176 – Battle of Meath – Norman defeat
• 1176 – Battle of Armagh – Norman defeat
• 1192 – Battle of Aughera – Norman defeat ^{[citation needed]}

• 1224 – Sack of Ard Abla ^{[citation needed]}
• 1225 – Sack of Loch Nen ^{[citation needed]}
• 1225 – Sack of Ardrahan ^{[citation needed]}
• 1230 – Siege of Dún Béal Gallimhe
• 1230 – Findcairn ^{[citation needed]}
• 1232 – Siege of Dún Béal Gallimhe
• 1234 – Battle of the Curragh
• 1235 – Siege of Dún Béal Gallimhe
• 1247 – Battle of Ballyshannon
• 1247 – Siege of Dún Béal Gallimhe
• 1249 – First Battle of Athenry
• 1256 – Battle of Magh Slecht
• 1257 – Battle of Creadran Cille
• 1257 – Sack of Sligo ^{[citation needed]}
• 1260 – Battle of Druim Dearg
• 1261 – Battle of Callann
• 1270 – Battle of Áth-an-Chip

• 1315 – Battle of Carrickfergus ^{[citation needed]}
• 1315 – Battle of Moiry Pass (June) ^{[citation needed]}
• 1315 – First battle of Dundalk (June) ^{[citation needed]}
• 1315 – Battle of Connor (September)^{[citation needed]}
• 1315 – Second battle of Dundalk (November) ^{[citation needed]}
• 1315 – Battle of Kells (December)
• 1316 – Battle of Skerries (January)
• 1316 – Second Battle of Athenry (August)
• 1317 – Battle of Lough Raska (August)
• 1318 – Battle of Dysert O'Dea (May)
• 1318 – Battle of Faughart (October)

• 1328 – Battle of Thomond
• 1329 – Braganstown massacre
• 1329 – Battle of Ardnocher
• 1330 – Battle of Fiodh-an-Átha
• 1333–1338 – Burke Civil War
• 1336 – Castlemore-Costello besieged and demolished by the King of Connacht ^{[citation needed]}
• 1340 – Battle of the O Cellaig's ^{[citation needed]}
• 1341 – Battle of the Clan Maurice ^{[citation needed]}
• 1342 – Battle of Beal-atha-Slisen – King of Connacht defeats the King of Moylurg ^{[citation needed]}
• 1343 – Battle of Hy-Many – MacFeorais and Clanricarde soundly defeat a small force from the Uí Maine. Achadhmona; battle between the O'Donnells, in Tirhugh
• 1345 – Battle of Lough Neagh – naval battle between Hugh O'Neill and the Clann Hugh Buidhe ^{[citation needed]}
• 1346 – Calry-Lough-Gill – O Rourke soundly defeated by the O Connors. Brian Mag Mathgamna defeats and kills 300 English somewhere in Thomond ^{[citation needed]}
• 1348 – Ballymote besieged and burned by MacDermot, O Connor defeated ^{[citation needed]}
• 1349 – O Melaghlin of Meath defeated in battle by the English ^{[citation needed]}
• 1355 – The English of West Connaught defeated Mac William Burke, and killed many of his people Clanricarde defeats the Mayo Bourkes and the Siol Anmchadha ^{[citation needed]}
• 1356 – Baile-Locha-Deacair ^{[citation needed]}
• 1358 – Hugh O Neill defeats the Fer Managh and Orial. O More defeats the English of Dublin in battle ^{[citation needed]}
• 1359 – Ballyshannon ^{[citation needed]}
• 1366 – Srath-Fear-Luirg ^{[citation needed]}
• 1368 – Oriel ^{[citation needed]}
• 1369 – Blencupa ^{[citation needed]}
• 1369 – Lough Erne – English of Munster and Desmond soundly defeated by O Brian, possibly at Limerick ^{[citation needed]}
• 1373 – Annaly ^{[citation needed]}
• 1374 – Niall O Neill defeats the English ^{[citation needed]}
• 1375 – Downpatrick – Niall O Neill defeats the English ^{[citation needed]}
• 1377 – Clann-Cuilein – Clanricarde and his allies defeated ^{[citation needed]}
• 1377 – Roscommon – Ruaidri O Conchobhair defeats the Mayo Burkes and the Uí Maine ^{[citation needed]}
• 1379 – Dreach – O Neill Mor defeats Maguire ^{[citation needed]}
• 1380 – Atha-leathann – Clanricarde defeated by Bourke of Mayo ^{[citation needed]}
• 1381 – Athlone ^{[citation needed]}
• 1383 – Trian Chongail – Hugh O Neill and Robin Savage kill each other in a cavalry charge ^{[citation needed]}
• 1384 – Carrickfergus "burned by Niall O'Neill, who thereupon acquired great power over the English" ^{[citation needed]}
• 1385 – Battle of Tochar Cruachain-Bri-Ele – O Conchobhair, King of Uí Falighe, soundly defeats the English of Meath
• 1389 – Caislen an Uabhair ^{[citation needed]}
• 1391 – Bealach-an-Chrionaigh ^{[citation needed]}
• 1392 – Ceann-Maghair ^{[citation needed]}
• 1394 – Battle of Ros-Mhic-Thriúin
• 1395 – Cruachain – the King of Uí Failghe defeats an English expedition. O Donnell defeats and captures the sons of Henry O Neill ^{[citation needed]}
• 1396 – Creag – O Conchobhair Roe defeats O Conchobhair Donn. O Tuathail of Lenister inflicts a severe defeat on the Anglo-Irish ^{[citation needed]}
• 1396 – Sligo – O Donnell and O Connor besiege and burn the town ^{[citation needed]}
• 1397 – Machaire Chonnacht ^{[citation needed]}
• 1397 – Bun-Brenoige ^{[citation needed]}
• 1398 – Eachdruim Mac n-Aodha – the O Tooles and O Byrnes defeat the Anglo-Irish, killing the Earl of March ^{[citation needed]}
• 1398 – Magh-Tuiredh – O Conchobair Roe and allies defeated by McDonagh ^{[citation needed]}
• 1399 – Battle of Tragh-Bhaile – the Anglo-Irish defeat the sons of Henry O Neill ^{[citation needed]}

• 1400 – Dunamon. ^{[citation needed]}
• 1406 – Battle of Cluain Immorrais
• 1444 – Duibhthrian; Sligo burned by the O Donnells, Maguires and O Connors. ^{[citation needed]}
• 1446 – Cuil Ua bh-Fionntain ^{[citation needed]}
• 1449 – Muintir-Maelmora ^{[citation needed]}
• 1452 – Cloch-an-bhodaigh; Coirrshliabh na Seaghsa ^{[citation needed]}
• 1453 – Ardglass (naval battle) ^{[citation needed]}
• 1454 – Inis ^{[citation needed]}
• 1455 – Athlone: The castle of Athlone was taken from the English, having been betrayed by a woman who was in it.
• 1456 – Cuil Mic an Treoin (Friday 18 May) ^{[citation needed]}
• 1457 – Druim da Ethiar ^{[citation needed]}
• 1460 – Corca Bhaiscinn (naval battle) ^{[citation needed]}
• 1461 – Ceann Maghair ^{[citation needed]}
• 1462 – Waterford taken by the Butlers in a war with the FitzGeralds. ^{[citation needed]}
• 1462 – Lancastrian Butlers defeated by Yorkist FitzGeralds at Battle of Piltown in Wars of the Roses.
• 1464 – Sliabh Lugha ^{[citation needed]}
• 1465 – Carn Fraoich ^{[citation needed]}
• 1466 – Offaly; Anglo-Irish army defeated by O Connor ^{[citation needed]}
• 1467 – CrosMoighe-Croin ^{[citation needed]}
• 1468 – Beann-uamha; Scormor, in Clann Chathail mic Murray ^{[citation needed]}
• 1469 – Baile-an-Duibh; The Defeat of Glanog ^{[citation needed]}
• 1473 – Doire-Bhaile-na-Cairrge ^{[citation needed]}
• 1475 – Baile-Locha-Luatha ^{[citation needed]}
• 1476 – Beal Feirste (Belfast)^{[citation needed]}
• 1478 – Sligo, and the siege of Carrig Lough Ce ^{[citation needed]}
• 1482 – Ath-na-gCeannaigheadh ^{[citation needed]}
• 1483 – Traghbhaile of Dundalk ^{[citation needed]}
• 1484 – Moin-Ladhraighe ^{[citation needed]}
• 1486 – Tirawley ^{[citation needed]}
• 1488 – two sieges of Carraig Lough Ce ^{[citation needed]}
• 1489 – Belfast castle demolished by O Donnell; Ballytober Bride sacked by O Connor Roe ^{[citation needed]}
• 1490 – Maigh Croghan ^{[citation needed]}
• 1493 – Glasdromainn; Beanna Boirche; ^{[citation needed]}
• 1494 – O Donnell besieges Sligo for several months in the summer, but is unsuccessful ^{[citation needed]}
• 1495 – O Donnell besieges Sligo again; battle of Beal an Droichit; siege of Ballyshannon; battle of Termon-Daveog; Siege of Waterford ^{[citation needed]}
• 1497 – Bealach-Buidhe; Beal Ath Daire. ^{[citation needed]}
• 1498 – Cros-Caibhdeanaigh. Dungannon. ^{[citation needed]}
• 1499 – Tulsk. First recorded death in Ireland from a bullet. ^{[citation needed]}

• 1504 – Battle of Knockdoe – Fitzgeralds of Kildare defeat the Clanricarde Burkes
• 1522 – Battle of Knockavoe – Clash between O'Donnells and O'Neills
• 1534 – Battle of Salcock Wood- A force from Dublin is defeated by a coalition of the O'Tooles and Fitzgerald supporters.^[19]
• 1534 – Siege of Dublin Castle by 'Silken' Thomas Fitzgerald in Kildare
• 1535 – Siege of Maynooth Castle, the chief residence of Fitzgerald, by English forces^[20]
• 1539 – Battle of Bellahoe Ford – A force led by Leonard Grey routs an O'Donnell/O'Neill force^[21]
• 1559 – Battle of Spancel Hill, a conflict over the O'Brien succession
• 1565 – Battle of Glentasie – Shane O'Neill defeats the MacDonnells of Clan Iain Mor
• 1565 – Battle of Affane – Fitzgeralds of Desmond defeated by Butlers of Ormond
• 1567 – Battle of Farsetmore – Shane O'Neill defeated by O'Donnell clan
• 1570 – Battle of Shrule^[22]
• 1575 – Rathlin Island Massacre
• 1583 – Battle of Aura – McQuillans, MacDonnells and O'Neills fight for control of Dunluce Castle
• 1586 – Battle of Ardnaree – Mercenary Scots entering Connacht are surprised and destroyed by Bingham's army^[23]
• 1590 – Battle of Doire Leathan – part of the O'Donnell Succession dispute

c. 1570–1583, between the sons of Richard Burke, 2nd Earl of Clanricarde

First Desmond Rebellion (1569–1573)

• 1569 – Siege of Kilkenny ^{[citation needed]}
• 1569 – First Battle of Killamock ^{[citation needed]}
• 1571 – Second Battle of Kilmallock^[24]

Second Desmond Rebellion (1579–1583)

• 1579 – Aenachbeg ^{[citation needed]}
• 1579 – Sack of Youghal ^{[citation needed]}
• 1579 – Sack of Kinsale ^{[citation needed]}
• 1580 – Battle of Glenmalure
• 1580 – Siege of Carrigafoyle Castle
• 1580 – Siege of Smerwick
• 1582 – Allhallowtide ^{[citation needed]}

• 1588 – Crown mobilisation to capture survivors

• 1608- Burning of Derry
• 1608- Battle of Kilmacrennan: Ends Cahir O'Doherty's brief rebellion.^[25]
• 1608- Siege of Tory Island

• 1631- Sack of Baltimore

• 1760 – Battle of Carrickfergus – Carrickfergus seized by the French for five days.
• 1795 – Battle of the Diamond – a sectarian faction fight in County Armagh, that led to the founding of the Orange Order

• 24 May – Ballymore-Eustace, Naas, Prosperous, Kilcullen
• 25 May – Carlow
• 26 May – Tara Hill
• 27 May – Oulart Hill
• 28 May – Enniscorthy
• 30 May – Three Rocks
• 1 June – Bunclody
• 4 June – Tuberneering
• 5 June – New Ross
• 7 June – Antrim
• 9 June – Saintfield
• 9 June – Arklow
• 13 June – Ballinahinch
• 19 June – Ovidstown
• 20 June – Foulksmills
• 21 June – Vinegar Hill
• 30 June – Ballyellis
• 27 August – Castlebar
• 5 September – Collooney
• 7 September – Ballinamuck

Several fragments of the rebel armies of the Summer of 1798 survived to fight on both in the hope of the rebellion breaking out again and of French aid. The main guerrilla groupings were:

• June – November 1798 – Joseph Holt
• 23 July 1803 – Robert Emmet
• 1798 -1803 – Michael Dwyer
• 1798 – 1804 – James Corcoran

• 1803 – Irish rebellion of 1803: failed republican uprising led by Robert Emmet.
• 1831–1836 – Tithe War: a period of rural insurgency over the payment of tithes to the Church of Ireland by non-members.
• 1848 – Young Ireland rebellion: failed Irish nationalist uprising by the Young Ireland group.
• 1867 – Fenian Rising: an abortive attempt at a nationwide rebellion by the Irish Republican Brotherhood.

Only the major engagements of this period are listed below.

• 1916 – Easter Rising

Irish War of Independence

• 1919 January 19 – Soloheadbeg Ambush
• 1920 October 22 - Tooreen ambush
• 1920 November 2 – Battle of Ballinalee
• 1920 November 28 – Kilmichael Ambush
• 1921 February 1 – Clonfin Ambush
• 1921 February 3 - Dromkeen ambush
• 1921 February 20 - Clonmult ambush
• 1921 February 25 – Coolavokig Ambush
• 1921 March 11 - Selton Hill ambush
• 1921 March 19 – Crossbarry Ambush
• 1921 March 21 - Headford Ambush
• 1921 March 23 - Scramoge ambush
• 1921 May 19 - Kilmeena ambush
• 1921 May 25 - Burning of the Custom House
• 1921 June 2 - Carrowkennedy ambush

Irish Civil War

• 1922 – Battle of Dublin
• 1922 – Irish Free State offensive
• 1922 – Battle of Kilmallock
• 1922 - Battle of Newport (County Mayo)
• 1922-23 - Guerrilla phase of the Irish Civil War

• 1942–1944 – First guerrilla campaign by the Irish Republican Army (1922–1969)
• 1956–1962 – Second guerrilla campaign by the Irish Republican Army (1922–1969)

• 1969 – Battle of the Bogside
• 1970 – Falls Curfew
• 1971 - Operation Demetrius
• 1972 - Bloody Sunday
• 1972 - Battle at Springmartin
• 1972 - Battle of Lenadoon
• 1972 - Operation Motorman
• 1972 - Springhill Massacre
• 1972 - Bloody Friday
• 1974 - Attack on UDR Clogher barracks
• 1975 - Drummuckavall ambush
• 1978 - Jonesboro Army Gazelle downing
• 1979 - Warrenpoint ambush
• 1984 - Kesh ambush
• 1985 - Strabane ambush
• 1985 - Newry mortar attack
• 1987 - Loughgall ambush
• 1988 - Ballygawley bus bombing
• 1989 - Attack on Derryard checkpoint
• 1990 - Derrygorry Army Gazelle downing
• 1990 - Operation Conservation
• 1991 - Mullacreevie ambush
• 1991 - Glenanne barracks bombing
• 1991 - Coagh ambush
• 1991 - Cappagh killings
• 1992 - Clonoe ambush
• 1992 - Attack on Cloghoge checkpoint
• 1992 - Coalisland riots
• 1992 - South Armagh sniper campaign
• 1993 - Battle of Newry Road
• 1994 - Crossmaglen Army Lynx downing
• 1994 - 1994 Shankill Road killings
• 1997 - July riots

• 1999- Stamullen raid^[26][27]

• List of Irish rebellions
• Military history of Ireland
• Irish military diaspora

• CELT: Corpus of Electronic Texts at University College Cork includes the Annals of Ulster, Tigernach, the Four Masters and Innisfallen, the Chronicon Scotorum, the Lebor Bretnach (which includes the Duan Albanach), Genealogies, and various Saints' Lives. Most are translated into English, or translations are in progress.