The Irish Naval Service – 71 years of Excellent Service (1946 – 2017)

The origins of Ireland’s seagoing naval service are closely tied to the founding of the state and our intricate relationship with the UK. But once officially formed on 1st September 1946, and unbound by previous constraints, the Irish Naval Service has been able to grow steadily over 71 years into the modern and uniquely Irish force we see today – one that ably protects Ireland’s maritime interests at home and contributes willingly to humanitarian efforts worldwide.

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Modern Irish Naval Service 71 years patrolling the seas (Credit Irish Naval Service)

It was the Second World War that hurried along the pace and development of Ireland’s seagoing defenses and led ultimately to the formation of the naval service as we now know it today. But it took a while to get there. Not permitted to have a navy under the terms of the treaty that established the Irish free state in 1921, Ireland would be effectively defenceless at sea for almost two decades.

The patrol vessel Muirchu (formally the Helga, infamously involved with the shelling of Dublin city during the Rising) given over to the Free state in 1923 was all we had. And so for almost 24 years it would patrol the three miles of coastal territory surrounding the whole island essentially alone.

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Muirchu  (Acquired 1923 – Decommissioned 1947)

It wasn’t until the late 1930’s that Ireland’s coastal defence became a real priority as foreign naval activity started to ratchet up and things began to change quickly. Certainly the British must have noticed the developments. In 1936 the state was given permission by the Admiralty to arm ships to aid with her patrols. The newly built steam trawler Fort Rannoch now joined the ageing Murichu patrolling. In July of that same year, the Royal Navy withdrew from Cork and handed over control of the ports that they had retained as part of the 1921 Treaty agreement. 

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Motor Torpedo boat The M1 in action

By early 1939 Ireland was now looking to grow its coastal force and two motor torpedo boats were ordered from the UK. It was also around this time that the Marine and Coastwatching Service was established and the recently returned naval base at Haulbowline was reactivated to act as a headquarters for this new service. All of this was just in time for the outbreak of World War 2 on September of 1939. 



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Haulbowline Naval Base at Cobh An ideal deep water location

Ireland choose to remain neutral during the war and was now fully responsible for the defence of its own ports and territorial waters. The absence of an official navy was a serious issue; having only the two armed fishery protection vessels as deterrents was less than ideal; but over the war period the number of vessels the Marine service had increased to 10; it comprised six motor torpedo boats, two inshore patrol vessels, one mine layer and one sail training vessel.

Even still, by the end of the war it was clear that Ireland would continue to need a naval force but that the current Marine Service would not be sufficient. And so it was disbanded in 1946. A real navy was required. 

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Badge of the Irish Naval Service

The Irish Naval Service (1946 – Present)

It was in September 1946 when the modern Irish Naval Service was formed. Naturally enough it was based at the Haulbowline in Cork and this newly formed naval service would require new ships as well. Three flower class Corvettes were purchased from the UK; these would become the backbone of the Naval Service for several decades and this is also when the tradition for naming ships after figures from Celtic mythology began.

Irish naval service anniversary founding

LE Macha (01) – One of first ship to have the LE (Long Éireannach or Irish Ship) prefix

These first three ships were LÉ Macha, LÉ Cliona and LÉ Maeve which served up until 1970. When they reached the end of their service, they were replaced by three coastal minesweepers – LÉ Grainne, LÉ Banba and LÉ Fola.

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LÉ Deirdre (P20) – Launched 1972 – Decommissioned 2001

The service continued to grow and in the 1970’s there was a considerable drive towards modernisation. In 1972 they commissioned LÉ Deirdre, the first naval vessel purpose-built in Ireland. An important addition to the fleet because in 1976 the economic exclusion zone around Ireland was increased from 12 to 200 miles, a hugely expanded area to patrol. And so new ships were added to the fleet, partly funded by the European Community which Ireland had just joined. LÉ Setanta (A15), LÉ Ferdia (A16), LÉ Emer (P21) and LÉ Aoife (P22) would all join the fleet in the 1970’s. They were mostly Offshore patrol vessels, vital to monitor Ireland’s new maritime territory.

Today the Irish Naval Service is a well equipped, rapid reacting force in a world that requires exactly that. Protection of fisheries is still a hugely important part of the services remit, along with interception of drug traffickers and other criminal activity.  Humanitarian engagement is also an increasingly important part of the job. The naval service currently operates a fleet of 7 large modern ships.

Meet the Irish Naval Fleet

Le Niamh Irish naval service anniversary founding

LÉ Niamh An inadvertent skelligs camouflage (Credit Irish Naval Service)

LÉ Niamh (P52) – Large Patrol vessel

Samuel Beckett-class newbuild LÉ William Butler Yeats (P63) Irish naval service anniversary founding

LÉ Samuel Beckett  A recent addition to the fleet (Credit Irish Naval Service)

LÉ Samuel Beckett (P61) – Offshore patrol vessel

LE-Roisin- Irish naval service anniversary founding

LÉ Róisín On patrol around Ireland (Credit Irish Naval Service)

LÉ Róisín (P51) – Large patrol vessel




le ciara . Irish naval service anniversary founding

LÉ Ciara Full speed ahead (Credit Irish Naval Service)

LÉ Ciara (P42) – Coastal patrol vessel

LE orla Irish naval service anniversary founding

LÉ Orla  Standing to attention (Credit Irish Naval Service)

LÉ Orla (P41) – Coastal patrol vessel

P31_L.É._Eithne_Operations_28_June_2015 Irish naval service anniversary founding

LÉ Eithne  Active in the Mediterranean (Credit Irish Naval Service)

LÉ Eithne (P31) – Patrol vessel

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LÉ James Joyce  Commissioning ceremony in Dun Laoghaire (Credit Irish Naval Service)

LÉ James Joyce (P62) – Offshore patrol vessel

Samuel Beckett-class newbuild LÉ William Butler Yeats (P63) Irish naval service anniversary founding

LÉ William Butler Yeats (P63) replaced the decommissioned LÉ Aisling  (Credit Irish Naval Service)

The latest addition to the Irish Naval Service fleet, LÉ William Butler Yeats (P63).

Future Addition to the Fleet Under construction in Appledore, Devon (Credit Irish Naval Service)

The new addition to the Irish Naval Service Fleet will be named after the acclaimed Irish playwright George Bernard Shaw.

Over the last 71 years the Irish Naval Service has grown from small beginnings into a vital and important part of both Ireland’s security and its identity – consistently and regularly standing out as a source of pride for every Irish person.

Happy 71st Birthday!

(All photos from Military.ie and Irish Naval Service Facebook page.)

About the Author

Daniel Farrell

Interested in all things on the Irish coast and sharing the best of it. // Email: Daniel@coastmonkey.ie // Follow on Twitter: @DanielsSeaViews