Europe has realized that nothing matters in technological sovereignty if it does not spend money on something crucial: defending its submarine cables

There is a type of technological infrastructure that is invisible, but that has become essential in recent years: submarine cables. Conflicts like those of the Red Sea either the ukrainian war have shown that the seabed is a new battlefield. Damaging submarine cables havoc can be wreaked, and the European Union has just outlined its plan to strengthen the security and resilience of these cables.

The goal? Track and stop threats in real time, but also repair underwater cables that enemies have attacked as soon as possible.

Plan of action. In recent months, Europe has been weaving a plan to protect its submarine cables. These cables carry most of the world’s Internet traffic (an estimated 99%), but also other essential goods such as energy, vital when we want to tackle offshore energy.

Hence the importance and, obviously, why the attacks also focus on them. Only in the first months of 2025 were more than a dozen submarine cables cut which seem few, but it really is something that can wreak havoc. And, therefore, Europe started to define an Action Plan with four main categories of action:

• Prevention: carry out risk assessments coordinated by countries and prioritize the financing of “smart” cables with redundancy.
• Detection: improve the monitoring capabilities of sea basins such as the Mediterranean or the Baltic to obtain a situation picture in real time.
• Response and recovery: strengthening rapid repair capacity and improving EU crisis protocols to act in a coordinated manner when a cable is damaged.
• Deterrence: use diplomacy and ultimately sanctions to respond to hostile acts. With global partners, promote a pact to encourage “cable diplomacy.”

Repair of a cable

Quick response. But of course, if deterrence does not work, we must act, and more recently, the European Commission has announced the steps to reinforce that strategy that aims to ensure that a damaged submarine cable causes as few headaches as possible. With an allocation of 40 million euros, the Commission seeks to guarantee a rapid and effective response to disturbances of submarine cables in emergency situations through adaptable modules.

These modules, like repair kits, will be strategically positioned in various sea basins so that, in the event of a cable break, the ships repairing the cables will have quick access to these modules. It is one more step in a strategy that already had a first pilot call for 20 million euros a few months ago and whose objective was to finance modules in the Baltic Sea.

Booster. Another measure will be the installation of the first two regional cable centers. In the Baltic, a Regional Center will be opened that will be responsible for strengthening surveillance and response mechanisms. The idea is that, with an allocation of 2.5 million euros, the information exchange platform and the capacity to both detect and prevent threats to maritime infrastructure will be improved. Finland will be the coordinator of the center together with Denmark, Germany, Estonia, Latvia and Sweden.

On the other hand, in the Mediterranean, another center will be supported with 3.3 million euros. The task will be to make decisions, exchange information in real time and the same as in the Baltic: anomaly detection and coordinated response to incidents. Italy will be the coordinator together with Greece, Cyprus and Malta.

Next steps. In the end, these two strategies are part of a much larger plan in which they had already been assigned 595 million euros to 74 continental connectivity projects.

In February of this year, the Commission also advertisement a package of some 347 million euros exclusively for submarine cable projects (construction, monitoring and repair), which shows that it is a strategic, basic infrastructure that fits in with the technological sovereignty plan that Europe is pursuing after seeing associations with allied countries weakened in recent years.

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