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Maritime Security: Ireland Advances Protection of Critical Undersea Infrastructure

Ireland is advancing maritime security measures to protect subsea cables, energy pipelines and other critical infrastructure through stronger EU and industry cooperation.

Ireland is strengthening its maritime security response as government and industry leaders meet to address growing risks to subsea cables, energy pipelines and other infrastructure essential to Europe’s economy. The discussions took place at the Maritime Security Conference at the Royal Hospital Kilmainham on 28 October 2026.

Hosted by the Department of Defence during Ireland’s Presidency of the Council of the European Union, the conference focused on cooperation between governments, defence organisations and private-sector infrastructure operators.

Maritime Security Strategy Drives New Irish Measures

Minister for Defence Helen McEntee outlined progress in implementing Ireland’s first National Maritime Security Strategy, published in February. The strategy aims to improve the protection and resilience of Ireland’s maritime domain while supporting closer cooperation with European and international partners.

Critical infrastructure beneath the sea carries communications, energy and economic networks across borders. Because these systems are interconnected, disruption in one location could affect several countries. The conference therefore highlighted the need for shared planning, information exchange and coordinated responses.

Key developments since November

  • Legislation enacted in July assigns the Defence Forces specific maritime security functions.
  • Cooperation with international partners has been strengthened.
  • Defence capabilities are being improved.
  • Engagement with subsea cable operators has increased.
  • Work is progressing on access to the EU Common Information Sharing Environment, known as CISE.

A CISE node for the Defence Forces is expected to become operational in early 2027. The system is intended to support the secure sharing of maritime information between relevant authorities.

Industry Cooperation Central to Ireland’s Maritime Security Plans

The Department of Defence emphasised that public authorities and militaries cannot protect maritime infrastructure alone. Many subsea cables, pipelines and related facilities are owned or operated by private companies, making industry participation a central part of national resilience planning.

Greater cooperation can help identify vulnerabilities, improve monitoring and ensure faster communication during an incident. It can also support a more consistent European approach to protecting infrastructure that underpins digital connectivity, energy supply and international trade.

The conference brought together senior decision-makers from government and industry across Europe, reinforcing the importance of cross-border collaboration. Ireland’s approach also connects with the wider work of gov.ie and public bodies responsible for national security, transport, energy and emergency planning.

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What the Maritime Security Programme Means

Ireland’s maritime security programme reflects a broader shift towards protecting infrastructure from evolving technological, economic and geopolitical risks. Effective preparedness will depend on clear responsibilities, reliable information sharing and regular cooperation between public agencies and operators.

For Ireland, the measures announced at the conference represent progress towards a more coordinated national capability. They also demonstrate how EU cooperation can support the protection of shared maritime assets.

Conclusion

Ireland’s maritime security efforts are moving from strategy to implementation, with new legislation, stronger partnerships and improved information-sharing capabilities. Protecting subsea cables and energy infrastructure will require sustained cooperation between government, the Defence Forces and industry. The key takeaway is clear: effective maritime resilience depends on coordinated action across borders and sectors.

Article/Image Courtesy: gov.ie

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