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Russian Maritime Activity in UK Waters Up 41% in 2025; Royal Navy to Procure Eight Type 26 Anti-Submarine Frigates

Defence Secretary Wes Streeting told the Atlantic Future Forum aboard HMS Prince of Wales in Oslo that Russian activity in the UK's maritime area of responsibility has risen 41 per cent this year. Streeting also announced the Royal Navy will procure three Norwegian standardised vessels as mine-hunting motherships, with an option for three more, alongside the existing programme for eight Type 26 anti-submarine frigates.
AI synthesis, editor-reviewed · 1 source · November 12, 2026 · Confidence medium (one outlet)
Photo: UK Defence Journal

If Russian Northern Fleet activity continues at this tempo, the Royal Navy's 50-plus annual ship visits to the High North will require sustained logistics and maintenance support that the current force structure was not sized for.

The Norwegian standardised vessel buy is a partial answer, but the option for three additional hulls suggests the MoD has not yet settled on the final fleet size — and that decision will depend on whether the 41 per cent activity increase reflects a durable trend or a 2026 surge tied to the broader Iran-driven operational tempo stretching NATO navies across multiple theatres simultaneously.

WHY IT MATTERS

The Royal Navy's mine-hunting mothership buy adds a concrete procurement line to what has been a largely posture-and-presence story in the High North.

The UK already has eight Type 26 frigates on order for anti-submarine warfare; adding Norwegian mine-hunting hulls signals that the Royal Navy sees the undersea threat as broad enough to require dedicated mine-countermeasures capacity in the same theatre, not just ASW.

The GUGI cable-mapping exposure Streeting cited is the operational evidence behind that procurement logic — if Russia is mapping undersea infrastructure in the North Atlantic, mine-hunting motherships are the defensive complement to the frigates.

WHAT THIS DOESN’T TELL US

What is the contract value and delivery timeline for the three Norwegian mine-hunting motherships, and which Norwegian yard will build them?

In this deal: Norway, Royal Navy
Sources: UK Defence Journal
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