Irish security officials and analysts say the Republic’s limited naval and air resources have been exploited by organised crime groups to move large quantities of cocaine from the Atlantic toward the United Kingdom, with traffickers increasingly using Ireland as an “entry point” into the British market.
A dramatic but rare 2023 operation to seize £132 million of cocaine on the container ship MV Matthew highlighted both the reach of the cartels and the strain on Ireland’s defences. Members of the Irish Army Ranger Wing fast-roped from a helicopter onto the rolling vessel during adverse weather and took control; the naval ship LÉ William Butler Yeats fired warning shots during the confrontation, officials said.
Authorities and multiple investigations, including material disclosed in U.S. court records, describe the MV Matthew seizure as the culmination of an undercover operation that involved the U.S. Drug Enforcement Administration. U.S. and Irish authorities say the vessel was linked to networks associated with the Kinahan organised-crime group. Eight men were later convicted in relation to the operation and sentenced to a combined total of 129 years in prison, according to court and media reports.
Security analysts say such high-profile interceptions are exceptional because most maritime counter-narcotics work requires a level of naval and air capacity that Ireland currently struggles to sustain. The Irish Naval Service has eight ships in total, and officials have said only two are typically available to operate at any one time because of personnel shortages. Defence spending in Ireland is about 0.2% of GDP, the lowest in the European Union, though the government has announced plans to increase defence funding by about €600 million over four years.
The geographic position of Ireland amplifies the security challenge. As one of the first European countries encountered by container ships arriving from the Atlantic, Ireland’s territorial waters — stretching over roughly 132,000 square miles — are used by traffickers who either conceal cocaine in containerised cargo bound for large continental ports or employ at-sea drop-off tactics. In the latter method, waterproof parcels of drugs are jettisoned from a container ship and retrieved by smaller vessels offshore.
Officials from the EU and the UK’s Maritime Analysis and Operations Centre (MAOC) monitor hundreds of vessels daily on suspicion of links to trafficking; MAOC sources have said they may track up to 600 ships a day. Traffickers then move product ashore in Ireland and across the land border into Northern Ireland, where the lack of routine customs checks and ferry connections to Scotland are exploited to push consignments on to Britain.
Former Irish army commandant Cathal Berry told a BBC documentary, Panorama: Fighting the Cocaine Cartels, that Ireland’s seas had become “a free-for-all” for traffickers. The documentary and court documents revealed tactical details of the MV Matthew plot: members of a trafficking network paid roughly £10 million for the container vessel, used intermediaries to buy a trawler called the Castlemore that was fitted with a tracker by investigators, and coordinated operations through encrypted messaging from overseas. Messages from a suspected organiser using the name “Captain Noah” indicated confidence that Irish security forces lacked the capacity to stop them.
Investigators say the interception involved surveillance and coordination lasting several days. The Castlemore ran aground during a storm while attempting to rendezvous with the MV Matthew and its crew were rescued by the Irish coastguard. The MV Matthew’s crew included a skipper who feigned a medical emergency and was later arrested after being airlifted ashore. Prosecutors and media reports identified some of those involved: Ukrainian national Vitaliy Lapa was sentenced to 14½ years and Englishman Jamie Harbron to 13½ years, among others.
Irish officials said the LÉ William Butler Yeats fired warning shots at the MV Matthew — the first warning shots fired by the service since the 1980s — and that the final boarding was executed by the Ranger Wing after an air ambulance was refitted because specialist helicopters were not available for the operation. The documentary and court material noted times when army helicopters were not available to assist counter-narcotics missions because assets were committed elsewhere.
Despite the headline seizure, authorities and law-enforcement agencies say large volumes of cocaine continue to transit Irish waters and reach Northern Ireland and Great Britain. Irish and U.K. agencies report rising seizure totals: more than £13 million of cocaine has been seized in Northern Ireland so far this year, a figure that authorities say has risen substantially since 2022. In May, investigators discovered 185 kilograms of cocaine hidden in a trailer at Belfast Port that had been due to board a ferry to Cairnryan in Scotland; the National Crime Agency described the haul as the largest in Northern Ireland’s history.
Irish government statements cited by officials emphasise that maritime security features a “continuous presence and vigilance” and that manpower and capability issues are being addressed. The planned defence budget increase is aimed at bolstering capacity, government sources said. International cooperation has also been central to recent successes: the MV Matthew case involved U.S. and Irish agencies and highlighted cross-border investigative work that officials say will continue to be a focus of counter-narcotics efforts in the Atlantic and the Irish Sea.
Maritime security experts say the evolving tactics of organised crime, including increased use of offshore drop-offs and containerised concealment, require sustained investment in ships, aircraft and personnel as well as continued international coordination to prevent Ireland’s waters from being used as a transit route into the United Kingdom.