List of wars involving the Republic of Ireland

This is a list of wars involving the Republic of Ireland and its predecessor states, since the Irish War of Independence. Since the 1930s, the state has had a policy of neutrality and has only been involved in conflicts as part of United Nations peacekeeping missions.

There have been many wars on the island of Ireland throughout history. Before independence, all of Ireland was part of the United Kingdom and Irish soldiers fought in many wars as part of the British military. Irish soldiers also fought in conflicts as part of other armies.

Conflict	Combatant 1	Combatant 2	Result
Irish War of Independence (1919–1921)	Irish Republic^[1]	United Kingdom	Victory Anglo-Irish Treaty^[2] Dominion status for 26 counties of Southern Ireland as the Irish Free State 6 counties of Northern Ireland remain part of UK United Kingdom retains the Ports of Berehaven, Spike Island and Lough Swilly
Irish Civil War (1922–1923)	Irish Free State (pro-Treaty forces) Military support: United Kingdom	Anti-Treaty IRA (anti-Treaty forces)	Pro-Treaty victory Consolidation of the Irish Free State
Congo Crisis (1960–1964)	ONUC Ireland^[3]^[4] Others	Katanga	Victory Debellation of the State of Katanga
Cyprus conflict (1964–present)	UNFICYP Ireland^[4]^[5]^[6] Others	Turkey Cyprus Greece	Ongoing
The Troubles (1968–1998)	State security forces Ireland Irish Defence Forces^[7] Gardaí^[7]	Irish republican paramilitaries Saor Éire (1967–75)^[8] Provisional IRA(1969–97)^[7] Official IRA(1969–72)^[9] INLA (1974–98)^[10] IPLO (1986–92)^[11] CIRA (1994–)^[12] RIRA (1997–)^[13] Ulster loyalist paramilitaries UVF(1966–94)^[14] UDA/UFF(1971–94)^[15] RHC(1972–94)^[16] UR (1986–) LVF (1996–)^[17]	Stalemate Good Friday Agreement^[18] Principle of consent accepted by all major parties involved^[18] Devolved powers to the local Northern Ireland Assembly^[18] Ceasefire and decommissioning of weapons from paramilitary groups^[18] Withdrawal of British troops from Northern Ireland^[18] Reform of the local police force^[19]
Lebanese Civil War and South Lebanon conflict (1978–present)	UNIFIL Ireland^[20]^[6] Others	South Lebanon Army Israel^[20] Hezbollah^[20] Amal PFLP-GC	Ongoing
Somali Civil War (1992–1995)	UNOSOM II Ireland^[21]^[6] Others	United Somali Congress	Victory UN humanitarian mandate fulfilled About 100,000 lives were saved by outside resistance Civil war is ongoing
Yugoslav Wars (1991–2001)	United Nations peacekeeping force Ireland^[6]^[22] Kosovo Force	FR Yugoslavia	Victory Stabilisation of the Balkans On-going Active Irish Presence
East Timorese Crisis (1999–2000)	UNTAET Ireland^[23]^[6] Others	Pro-Indonesia militia	Victory Defeat of pro-Indonesian militia Stabilisation of East Timor
Chadian Civil War (2008–2010)	EUFOR Chad/CAR MINURCAT Ireland^[24]^[6] Others	Rebel groups
Syrian Civil War in the Golan Heights (2013–2018)	United Nations peacekeeping force Ireland Others	Syrian opposition Al-Nusra Front Syria

v t e Lists of wars involving European countries
Sovereign states	Albania Andorra Armenia Austria Azerbaijan Belarus Belgium Bosnia and Herzegovina Bulgaria Croatia Cyprus Czech Republic Denmark Estonia Finland France Georgia Germany Greece Hungary Iceland Ireland Italy Kazakhstan Latvia Liechtenstein Lithuania Luxembourg Malta Moldova Monaco Montenegro Netherlands North Macedonia Norway Poland Portugal Romania Russia San Marino Serbia Slovakia Slovenia Spain Sweden Switzerland Turkey Ukraine United Kingdom
States with limited recognition	Abkhazia Kosovo Northern Cyprus South Ossetia Transnistria
Dependencies and other entities	Åland Faroe Islands Gibraltar Guernsey Isle of Man Jersey Svalbard

List of wars involving the Republic of Ireland

See also

References

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