Rearming the Baltic Sea: NATO’s Northern Maritime Shift

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Baltic Sea naval modernisation is building a layered regional architecture. Crewed vessels are being renewed for patrol, mine warfare, and air defence. Coastal and land-based missile forces are expanding. Submarines remain central to intelligence and deterrence. Unmanned systems are emerging as the connective tissue that enables persistent surveillance. As Nordic suppliers play a growing role in this rearmament, the NATO Sea is increasingly also becoming a Nordic Sea.

That architecture is designed to keep the Baltic open for allied reinforcement and commerce while raising the costs of sabotage, coercion, and rapid escalation, in a sea whose geography makes the boundary between peacetime security and wartime operations unusually thin.

The Baltic Sea’s physical geography shapes naval design choices more directly than in most other European theatres. The sea is brackish and highly variable, salinity falls from the Danish Straits towards the north and east, and the water column is often stratified, with denser, saltier layers below fresher surface water.

In addition, the Baltic is shallow by global standards, a large share is less than 30 metres deep, and the average depth is a little over 50 metres, which pushes operations toward littoral tactics and makes seabed conditions operationally relevant.

Winter adds another design constraint. Navies that need year-round freedom of movement require crews trained for ice conditions and platforms able to operate in partly frozen waters.

Those environmental constraints sit alongside an unusually dense layer of critical undersea infrastructure and heavy commercial traffic. The seabed hosts power and data cables, and gas pipelines, and recent years brought a steady sequence of reported disruptions and suspected attacks, which have turned cable and pipeline security into a standing operational demand rather than an occasional contingency.

Nordic and Baltic governments, and NATO, now treat seabed situational awareness as a defence mission, with surface patrols, mine countermeasures ships, and unmanned systems increasingly described as Security Cameras for the seabed.

Nordic defence industry sits in a sweet spot for this moment, close to the threat, trusted by partners, and already strong in the exact segments navies now prioritise.

The security environment tightened further after Finland and Sweden joined NATO, which led to frequent commentary describing the Baltic as a NATO Sea, or a NATO lake, with the remaining Russian-controlled coastline concentrated around Russia proper and the Kaliningrad exclave.

At the same time, regional reporting and intelligence assessments underline a second, more ambiguous layer of risk, shadow fleet shipping tied to sanctions evasion, and the difficulty of distinguishing negligence, coercion, and deliberate sabotage in cable incidents.

That combination of geography, seabed infrastructure, and grey zone pressure is the backdrop to the current wave of naval procurement programmes.

Gearing Up: Country by Country Naval Procurement

Across the Baltic Sea littorals, naval modernisation is less about acquiring blue water power projection and more about building a resilient set of denial and protection tools, mines and mine countermeasures, coastal and ship-launched anti-ship weapons, short to medium range air defence, seabed surveillance, and fast response craft designed for shallow water and archipelagic manoeuvre. The same programmes also show a strong industrial logic, smaller fleets are pooling development and procurement, and larger fleets are using “off the shelf” or common design approaches to compress timelines.

Denmark: Hybrid Risk and Saildrones

A Saildrone Voyager USV deployed in the Baltic Sea. (Image: Saildrone)

Denmark has become the clearest case of a Baltic Sea state framing naval procurement around hybrid risk, critical infrastructure, and sustained surveillance. The 2024–2033 defence agreement sets the macro picture, roughly DKK 155 billion (€20.7 billion) in investments, with the stated aim of meeting NATO’s 2 per cent of GDP target permanently no later than 2030. In early 2025, the Danish government agreed to fast-track defence spending with an additional €6.7bn over the next two years and a reorganisation of the Ministry of Defence to accelerate investments. Defence spending will exceed 3 per cent of GDP in 2025 and 2026. The NATO target is 3.5 per cent.

Defence spending has increased in several European countries (Image: Danish National Bank)


In late 2025, Denmark unveiled a €3.9bn defence package aimed at strengthening security across the Arctic and North Atlantic, including Greenland. The plan was prepared in coordination with the governments of Greenland and the Faroe Islands. It includes the acquisition of two Arctic-capable vessels, maritime patrol aircraft, drones and an upgraded early-warning radar system. A new Arctic command headquarters will be established in Nuuk, the capital of Greenland, alongside the creation of a new military unit operating under the Joint Arctic Command.

The plan also includes funding for a subsea cable linking Greenland with Denmark.

Within that framework, the April 2025 Navy Plan launched a near-term maritime recapitalisation that explicitly links Russia’s threat profile to a need for urgent acquisitions and rapid technological adaptation.

Reuters reporting on the same plan described an investment of about DKK 4 billion (€535 million) tied to 26 vessels, spanning patrol tasks, oil spill response, and dedicated undersea infrastructure monitoring, with drones and sonar systems part of the package.

A distinctive Danish feature is early operational experimentation with unmanned surveillance as a supplement to scarce crewed hulls. Denmark has run operational trials of uncrewed Voyager saildrones, autonomous unmanned surface vehicles (USVs), for maritime surveillance, with sensors including radar, optical and infrared cameras, sonar, and acoustic devices, and with a stated emphasis on monitoring areas with vital undersea infrastructure.

Denmark’s programme also has a North Atlantic and Arctic dimension that feeds back into Baltic resilience, because the same fleet must cover the Danish Straits, the North Sea, and the Kingdom’s wider responsibilities. In February 2026, Denmark published an official construction strategy for five new Arctic vessels, based on a distributed build model with module production across Denmark and assembly in Frederikshavn.

Earlier, the 2025 Second Agreement on the Arctic and North Atlantic framed those five vessels as ice-capable platforms intended to operate more effectively in the Arctic and North Atlantic, and to benefit from economies of scale through a common type.

Finland: Four New Corvettes

Finland’s Pohjanmaa-class corvettes are built by Rauma Marine Constructions (RMC) and will be equipped with Saab’s 9LV combat management system and Sea Giraffe radars . (Image: Finnish Navy)

Finland’s naval renewal centres on replacing ageing surface combatants with a small number of multi-role platforms optimised for Baltic conditions and national defence priorities. The Finnish Navy describes the Squadron 2020 project as a strategic capability programme, launched to replace existing combat vessels, with an investment decision in 2019 and four new corvettes forming a future core.

A major industrial feature is that construction is domestic, while key mission systems and integration draw on Nordic supply chains.

The systems package for those corvettes also illustrates a regional trend, high-end sensors and combat management with strong NATO interoperability, paired with the ability to fight in cluttered littoral conditions. A 2019 contract statement from Saab lists systems such as the 9LV combat management system and Sea Giraffe radars as part of its Squadron 2020 scope, alongside communications and remote weapon systems.

Finland is also extending the relevance of existing fast craft through mid-life upgrades. The Finnish Defence Forces notes that the Hamina class missile craft received a mid-life upgrade, including new anti-ship missiles, sensors, and a new combat management system, and that the upgrade added torpedo armament.

The Finnish Government has framed these naval upgrades around core missions of repelling maritime attacks and protecting sea lines of communication, which aligns with the wider Baltic focus on denial and escort rather than distant power projection.

A particularly Baltic-specific Finnish initiative is leadership in naval mine cooperation. In October 2025, Finland announced it would lead a new Naval Mines Cooperation framework, with a joint procurement of the Blocker Influence Sea Mine System being prepared by Denmark, Finland, Germany, Lithuania, and Norway.

Mines remain a central, cost-effective way to close straits, shape adversary movement, and protect reinforcement routes, especially in shallow, constrained waters.

Sweden: High End Submarine Capability

According to Admiral Ewa Skoog Haslum, Chief of the Royal Swedish Navy, the Luleå-class (the illustration in front) will be larger than the existing Visby (illustration in the back) and Gävle-class corvettes. They will be equipped to operate in all levels of conflict against surface, air and sub-surface targets. (Image: Saab)

Sweden is modernising with an explicit goal of moving from a primarily littoral corvette fleet to larger surface combatants with stronger air defence and endurance, while also sustaining a high-end submarine capability carefully tuned for Baltic conditions. In May 2024, Sweden’s defence procurement authority, Swedish Defence Materiel Administration, stated that it had signed a contract with a main supplier to conduct systems work and basic design for a new surface combatant, with a product definition phase running to around mid 2025 and an initial delivery of two ships planned for 2030.

The Swedish Government’s Total Defence resolution for 2025–2030 also highlights procurement of the Luleå class surface combat vessels within the 2025–2030 period, describing them as a major contributor to anti-aircraft capability once delivered.

Sweden has also signalled a procurement method shift to hit the timeline. In September 2025, the procurement authority described market research on existing products, with a plan to sign a contract with a selected supplier in the first half of 2026.

Sweden’s intention is to choose a supplier in early 2026, the preference being for proven designs, with delivery beginning by 2030.

On the current fleet, Sweden is upgrading its Visby-class corvettes with a modern air defence missile system. In May 2025, the procurement authority announced a contract to equip the five Visby corvettes with an air defence missile system, which will expand the defended area and enable engagements at longer range.

Sweden is also building logistics depth. In February 2026, the procurement authority signed a contract for four new logistic support vessels, with deliveries planned for 2030.

Saab has secured a €140m contract from FMV to equip Sweden’s five Visby-class corvettes with MBDA’s Sea Ceptor air defence system, strengthening both Swedish and NATO air defence. (Image: MBDA)

Undersea warfare remains Sweden’s signature Baltic contribution, but it is also a cautionary example about the difficulty of sustaining national submarine industrial capacity. In October 2025, the procurement authority published an updated contract for the A26 programme, stating deliveries in 2031 and 2033 and a new total contract sum of about SEK 25 billion (€2.32 billion).

The A26 is designed for shallow Baltic conditions, with features that support seabed operations and the use of unmanned vehicles and divers, an architecture increasingly relevant for cable and pipeline security missions.

Estonia: Patrol and Mine Countermeasures

Republic of Singapore Navy RSS Fearless (LMV 22) during Exercise Pacific Griffin 2021. (Image: US Navy / Petty Officer 2nd Class Deanna Gonzales)

Estonia’s maritime modernisation is shaped by small fleet realities and by the geography of the Gulf of Finland, where seabed infrastructure and reinforcement routes converge. Estonia’s investment plans show near-term spending focused on patrol, mine countermeasures, and targeted upgrades, rather than a rapid shift to large combatants. In its 2024–2028 defence investments plan, the Estonian Centre for Defence Investments lists a 2025 acquisition of a patrol vessel suitable for pollution control, maritime border guard, and transport of combat systems, budgeted at €23 million, alongside a €13 million upgrade of mine countermeasures vessels’ equipment and systems.

Saab and ST Engineering have proposed a variant of the Republic of Singapore Navy’s littoral mission vessel for the Estonian Navy. The plan groups these projects inside an Air, Sea and Combat Vehicles procurement category that explicitly includes mine countermeasures, patrol and support ships, plus boats and unmanned systems, which indicates Estonia sees maritime tasks as part of a broader mobility and surveillance portfolio rather than a stand-alone navy expansion plan.

Centred on the Littoral Mission Vessel (LMV), the naval offer is as much an industrial strategy as it is a procurement proposal. The package points to a model where capability, supply chains and local industry are built in parallel. Saab has explored constructing parts of the vessels in Estonia, including hull work, which would transfer shipbuilding expertise and create a domestic maintenance and refit capability.

The offer is designed to integrate with Estonia’s existing strengths in unmanned systems, sensors and software. The LMV’s modular architecture allows local companies to develop and supply mission payloads, from ISR to mine warfare, while retaining the ability to upgrade systems over time. Industrial cooperation also extends to training and sustainment. Saab’s existing footprint in Estonia could expand into local simulation and training centres, while lifecycle support would likely include maintenance, repair and overhaul activities within the country. Saab’s systems are widely used across NATO, offering Estonian firms potential access to broader alliance supply chains and standards. Combined with Estonia’s planned defence industrial park, this opens a pathway towards export-oriented co-production, embedding Estonia into a wider Nordic and NATO industrial ecosystem.

The proposal also carries a dual-use dimension, with technologies in autonomy, sensors and data systems offering spillover into civilian sectors.

However, Estonia’s most strategically significant new maritime strike capacity sits on land, not on ships. In February 2024, ERR reported the arrival of the Blue Spear mobile anti-ship missile system, quoting a 290-kilometre range, a total project cost of about €100 million including infrastructure and future costs, and the creation of a coastal defence division of over one hundred personnel, with a stated ambition to develop a sea launch capability later.

Earlier analysis by the OSW Centre for Eastern Studies described the original procurement as part of building a land-based coastal defence unit, also citing a 290-kilometre range.

This mix, coastal missiles plus mines and mine countermeasures, aligns with a classic Baltic denial concept, constraining adversary freedom of manoeuvre at relatively low fleet size.

Operationally, Estonia continues to prioritise mine warfare and allied integration. The Estonian Defence Forces has highlighted its long-standing contributions to NATO’s Standing NATO Mine Countermeasures Group 1, including the regular provision of a minehunter.

On industrial policy, Estonia’s domestic debate increasingly links naval renewal to national shipbuilding capacity, with reporting from ERR stating the defence ministry’s view that new navy vessels should be built in Estonia where possible, while acknowledging that specific ship choices remain under development.

Latvia: Emphasis on Autonomous Systems

Upgrade of the Liepāja Military port is critical for ensuring allied forces’ easy access to Latvian land for the delivery of personnel and other resources via sea. (Image: Latvian Ministry of Defence)

Latvia’s naval development plans read like a checklist of Baltic Sea requirements, coastal denial, mine warfare, unmanned systems, surveillance, and host nation support for allied reinforcement. Latvia’s 2025–2036 long-term development plan states that the Latvian National Armed Forces will introduce both long-range and short-range anti-ship missile systems, explicitly naming NSM at a 200-kilometre range in an illustrative layered coastal defence concept.

The same plan emphasises improved sea surveillance, strengthened vital underwater infrastructure and harbour defence, and an intent to boost countermine warfare capabilities while adapting existing platforms for mine laying.

A striking Latvian design signal is the level of emphasis on autonomous systems. The development plan describes new autonomous air, surface, and underwater unmanned systems as part of future territorial waters control and mine warfare effectiveness.

This strengthens a regional direction, the Baltic is becoming a testbed for distributed maritime sensing and remote mine countermeasures because the combination of shallow water and heavy infrastructure makes persistent Eyes On coverage valuable, and the cost of saturating the sea with crewed hulls is prohibitive for smaller budgets.

Lithuania: Multi-Mission Ships

Before Lithuania, Marine Alutech delivered 12 Watercat M18 AMC multipurpose high-speed landing crafts to the Finnish Navy. The vessel is powered by two 660 kW Scania diesel engines and features Rolls-Royce waterjet propulsion. (Image: Marine Alutech)

Lithuania is modernising toward a two-tier approach, fast attack and transport craft for shallow and confined waters, and a longer-term ambition for a larger multi-role patrol and infrastructure protection vessel. In April 2025, Lithuania announced it would obtain two new multi-purpose attack craft under a cooperative procurement contract with Latvia, produced by Finnish Marine Alutech.

Finland’s defence ministry described these craft as able to operate in extremely shallow waters, with final assembly in Finland and some parts manufactured in customer countries, which reflects a regional preference for shallow draft platforms that can manoeuvre inside archipelagos and close to shore.

For the next tier, Lithuanian industry has promoted a larger patrol vessel concept. Reporting on the Perkūnas concept describes an 88-metre design intended to support infrastructure protection and specialised operations, aligning with the Baltic shift toward Multi Mission Patrol Plus Seabed Security ships rather than single-purpose patrol vessels.

This concept direction also mirrors the way undersea infrastructure incidents have forced navies and coast guards to fuse military deterrence with functions like inspection, escort, and environmental response.

Poland: Largest Baltic Sea Modernisation Effort

The A26 submarine’s acoustic signatures are extremely low, also far outside the traditional frequency ranges for submarines. (Image: Saab)

Poland’s naval programme is the largest and most overtly high-end modernisation effort among the Baltic Sea littorals, and it has increasingly become a reference point for the region’s future force balance. The most prominent recent decision is the selection of Saab’s A26 submarine design for Poland’s Orka programme. In late November 2025, Poland reportedly chose Sweden as a supplier, with Saab to sell three A26 submarines, and with Saab describing a plan to parallelise production to deliver the first boat in 2030.

This is a strategically consequential capability choice in the Baltic because modern conventional submarines are both survivable and versatile in shallow waters, and can contribute to deterrence, intelligence gathering, and seabed-related missions.

Poland is also pursuing major surface fleet renewals. A cooperation agreement between Babcock International and Polska Grupa Zbrojeniowa positions Babcock to support the Miecznik frigate programme, which is based on the Arrowhead 140 design family and aims to rebuild Poland’s surface combatant weight in the Baltic.

Poland and Sweden will develop military capabilities together to strengthen security on the Baltic Sea. The Deputy Prime Minister, Minister of National Defence, Władysław Kosiniak-Kamysz, met with the Minister of Defence of Sweden, Pål Jonson, at the Gdynia Naval Base in March 2026. (Image: Polish Ministry of National Defence)

In parallel, Poland’s procurement agenda continues to include mine countermeasures and support ships, a pattern consistent with Baltic operational needs where mine threats, both legacy and contemporary, remain a central planning factor.

Poland’s policy debate also shows how seabed security is entering national foreign policy, not only naval planning. In February 2025, Reuters reported Poland calling for EU sanctions on captains of ships that damage underwater infrastructure, citing repeated disruptions to cables and pipelines and linking the problem to shadow fleet operations and flags of convenience.

That political line reinforces the likelihood that Poland’s future naval concepts will treat critical infrastructure protection, including identifying, escorting, and if necessary, interdicting suspicious shipping, as a standing mission set alongside traditional warfighting.

Germany: Six Frigates, Four Submarines

The non-nuclear submarine HDW Class 212CD, built by ThyssenKrupp Marine Systems TKMS. (Image: TKMS)

Germany’s Baltic Sea posture is shaped by dual demands: NATO reinforcement and deterrence in Northern Europe, and broader expeditionary responsibilities. Its procurement priorities increasingly support sustained presence and survivability, including larger surface combatants, modern submarines, and a gradual shift toward uncrewed systems.

The flagship surface programme is the F126 frigate, where Germany moved from four to six ships. In June 2024, Germany reportedly aimed to procure two additional F126 frigates, framing the choice as part of the Zeitenwende defence shift and emphasising the need to contribute to collective defence and protect the northern flank, with first delivery expected in 2028.

Damen Naval also confirmed in June 2024 that the German procurement office signed the contract for the two additional ships, bringing the total to six.

Undersea modernisation is equally significant. Reuters reported in late 2024 on Germany seeking parliamentary approval for a €4.7 billion deal to buy four additional Type 212CD submarines, a step presented as necessary to meet NATO requirements for northern flank defence.

A later Thyssenkrupp Marine Systems statement on heavyweight torpedoes for the 212CD programme also notes that Germany’s order rose from an original two to six submarines after decisions taken in December 2024.

Germany is also a prominent driver of the Uncrewed Turn in European naval thinking, especially in underwater surveillance. The Financial Times reported in 2025 that German company Helsing planned fleets of unmanned mini submarines for underwater surveillance, pitched as scalable, long-endurance systems that could strengthen protection of critical undersea infrastructure.

This sits close to Baltic requirements, because the seabed is both strategically valuable and hard to monitor continuously with crewed ships alone.

Norway: Submarines and Anti-submarine Frigates

In August 2025, the Norwegian Government announced its intent to procure at least five Type 26 frigates as part of a strategic defence partnership with the UK. (Image: BAE Systems)

Norway is not a Baltic Sea littoral state, yet it is central to Baltic reinforcement, because its naval forces anchor NATO’s north and protect the North Atlantic routes that feed supplies, and its defence industry and procurement choices influence Nordic standardisation. Norway’s current naval modernisation agenda strongly emphasises anti-submarine warfare, undersea presence, and long-range strike.

On submarines, Norway has expanded its 212CD programme. In January 2026, Forsvarsmateriell confirmed it had signed a contract for two additional 212CD submarines, developed by ThyssenKrupp Marine Systems (TKMS), stating that the first new boat is planned to be delivered in 2029.

The expanded package would raise the total to six submarines, with the first expected in 2029 and total costs rising partly due to inflation and high demand.

Norway is also recapitalising major surface combatants. In 2025, Norway signed a large agreement to buy Type 26 anti-submarine frigates built by BAE Systems Maritime – Naval Ships in the United Kingdom, framing the purchase as a contribution to NATO’s northern flank, undersea infrastructure protection, and joint operations with the UK.

Norway’s intent is to buy long-range missiles with ranges up to 500 kilometres, a sign that Norway is pairing sea denial and undersea surveillance with land-based or joint fires meant to shape escalation across the broader Nordic region.

The Nordic–Baltic Industrial Logic

The disruptive technology used in modern smart sea mines can also be dual-used to monitor, surveil, and protect critical undersea infrastructure. (Image: ATLAS ELEKTRONIK Finland)

The current procurement wave also shows a strong Nordic Baltic industrial logic. Regional shipbuilding and systems integration, including Saab’s role across Finland, Sweden, and now Poland’s planned submarine acquisition, plus the possible Estonian naval investment, reinforces the sense of a tightening Nordic Baltic maritime ecosystem.

Sweden’s surface combatant programme is structured around basic design work and a later supplier choice, while aiming for off-the-shelf options to compress timelines, which suggests procurement authorities now value delivery speed and industrial risk reduction at least as much as bespoke national design.

Smaller states are leaning even more strongly into cooperative procurement to overcome scale limits. Lithuania and Latvia’s joint acquisition of fast multipurpose attack craft, with final assembly in Finland and explicit design emphasis on extremely shallow water operations, is a concrete example of how common craft procurement can build interoperable capability quickly.

In the mine warfare space, the Naval Mines Cooperation framework led by Finland points to similar logic, shared procurement, shared logistics, and shared concepts for a mission set that is structurally central in the Baltic Sea.

Denmark’s distributed construction strategy for Arctic vessels adds a different industrial dimension, state-backed shipbuilding infrastructure designed for modular assembly and future scale.

Even though the Arctic vessels sit outside the Baltic, the industrial approach is strategically relevant for the whole Nordic region, including Greenland, it signals a move toward sovereign production capacity and surge potential, which also supports Baltic contingency resilience under high-demand conditions. The US has recently decided to buy several icebreakers from Finland. Finnish companies have designed 80% of all icebreakers currently in operation, and 60% were built at shipyards in Finland.

As Europe spends more and tries to keep more value inside Europe, the Nordics can export three things at once: hard kit, integration know-how, and a credibility premium, because they are building for the same theatre conditions everyone else is now preparing for.

Strategically More Independent Europe

Europe’s push towards greater defence self-reliance is already reshaping naval procurement, even when the ship hull itself remains the same familiar corvette, frigate, minehunter story. The shift shows up in the combat system stack, the sensors, the missiles, the data links, and the industrial rules that decide who gets to build, integrate, maintain, and upgrade those systems over thirty years.

First, more European radars, electronic warfare, and command systems. These are the items that determine whether a ship can survive in a missile-saturated littoral fight and whether it can contribute to an allied kill chain. The European defence spending boom has been especially visible in sensor and electronics suppliers, because governments are buying readiness, and readiness in 2026 is often a radar delivery schedule and a software baseline.

Second, more European Industrial Rules of the Road. EU-level programmes are trying to steer procurement towards European content and collaborative buying, even though member states keep arguing over how strict Buy European should be. This matters for naval projects because it affects the whole ecosystem, integration work, munitions stockpiles, maintenance contracts, and mid-life upgrades.

Third, a Baltic Sea bias towards denial and resilience. In the Baltic, the strategic problem is sea denial, coastal defence, mine warfare, and the ability to keep ports, sea lanes, subsea cables, and offshore energy infrastructure functioning under pressure, including sabotage and coercion. That pushes navies towards networks of sensors, missiles, and unmanned systems, with ships acting as nodes rather than lone actors.

Silent Shield: Baltic Navies Build Radar and EW Layer

The Baltic Sea

Baltic Sea states are investing in radar and electronic warfare as part of naval modernisation. Sweden, Finland, Poland, Germany and the Baltic countries are expanding sensor networks alongside ship and submarine programmes. The focus is on control of the electromagnetic spectrum.

AESA radar systems are now standard across naval and air-defence platforms. They track multiple targets and support fire control and electronic functions at the same time. Sweden leads with Saab’s Giraffe radar family, used across land, sea and air. Poland is strengthening coastal surveillance with Israeli radar systems, linked to its wider naval expansion. Finland hosts the production of Saab’s Sirius Compact passive electronic warfare system.

Electronic warfare is now a core naval capability. Systems such as Sirius Compact detect and analyse signals without emitting. This enables threat detection and classification, early warning without exposure, and continuous situational awareness. In the Baltic, short distances and dense activity make active emissions risky.

European suppliers, including Thales, Leonardo and Hensoldt, are delivering naval radar and EW systems such as SMART-L and TRS-4D. Germany integrates these into its naval programmes. The result is a shared European sensor and EW base.

Naval investments are moving towards networks. Poland’s submarine programme is paired with surveillance upgrades. Sweden is upgrading Visby-class corvettes with improved sensors and air defence. Airborne systems such as Erieye and GlobalEye extend coverage across the Baltic and Arctic.

The structure is layered: There are coastal radar networks, shipborne radar and EW systems, airborne early warning, and passive EW sensors.

The Baltic Sea environment drives this development. Traffic density, subsea infrastructure and proximity to Russian systems increase the need for detection and survivability. Radar provides tracking. Electronic warfare provides protection.

A regional system is forming. Sweden and Finland supply sensors and EW technology. Poland and Germany invest in platforms and coastal systems. The Baltic states integrate these into NATO frameworks.

Naval balance in the Baltic depends on detection and information control. Radar and electronic warfare now define how operations are conducted and how threats are managed.

Examples of the electromagnetic spectrum being exploited and blocked in electromagnetic warfare, which touches all operational domains (Image: NATO Joint Air Power Competence Centre).
Examples of the electromagnetic spectrum being exploited and blocked in electromagnetic warfare, which touches all operational domains (Image: NATO Joint Air Power Competence Centre).

Focusing on Missiles, Radars and Integration Work

The most important commercial consequence is that the Ship becomes a platform for a European mission system, where the recurring revenue and the strategic leverage sit.

Missiles and air defence. Europe’s procurement agenda has been increasingly dominated by air and missile defence, and that spills into naval requirements because the Baltic and North Sea theatres demand layered defence against cruise missiles, drones, and aircraft. NATO’s own industrial pledge language has put munitions and air and missile defence at the centre of the capacity-expansion effort. That creates pull for shipborne radars, vertical launch systems where relevant, and the wider kill chain that connects sea sensors to land shooters and air assets.

Radars and electronic warfare. In a shallow, cluttered sea full of civilian traffic, seeing and sorting is decisive. Radar houses, EW specialists, and systems integrators benefit because almost every navy is upgrading sensors faster than it is replacing hulls. Germany’s sensor industry has been a visible beneficiary of the European rearmament cycle, which is a useful proxy for the demand trend facing naval sensor suites as well.

Integration and sovereign support. The autonomy agenda rewards countries that can do systems integration at home, sustain fleets with domestic industry, and update software and mission systems without external political risk. This is where Nordic suppliers and Nordic shipbuilding can punch above their weight.

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