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 foreign wars as part of the British military. Irish soldiers also fought in conflicts as part of other armies.
style=rowspan="1" width=200px | Conflict | style=rowspan="1" width=180px | Combatant 1 | style=rowspan="1" width=180px | Combatant 2 | style=rowspan="1" width=200px | Result |
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Irish War of Independence (1919–1921) | Irish Republic | Victory
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Irish Civil War (1922–1923) | National Army | Irish Republican Army | Victory
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Congo Crisis (1960–1964) | United Nations peacekeeping force | Victory
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Cyprus conflict (1964–present) | United Nations peacekeeping force | Turkey---- Cyprus Greece | Ongoing | ||||
The Troubles (1968–1998) | paramilitaries
---- paramilitaries | Stalemate
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Lebanese Civil War and South Lebanon conflict (1978–present) | United Nations peacekeeping force | South Lebanon Army ---- Hezbollah Amal PFLP-GC | Ongoing | ||||
Somali Civil War (1992–1995) | United Nations peacekeeping force | United Somali Congress | Victory
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Yugoslav Wars (1991–2001) | United Nations peacekeeping force | FR Yugoslavia | Victory
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East Timorese Crisis (1999–2000) | United Nations peacekeeping force | Pro-Indonesia militia | Victory
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Chadian Civil War (2008–2010) | United Nations peacekeeping force | Rebel groups | |||||
Syrian Civil War in the Golan Heights (2013–2018) | United Nations peacekeeping force | Syrian opposition---- Al-Nusra Front---- |