European Sovereignty Monitor

Defence and space

UK and Norway sign Lunna House pact to counter Russian undersea threat

The UK and Norway signed the Lunna House Agreement on 4 December 2025 to operate their navies as one against Russian submarine and undersea sabotage threats. It covers a GBP 10 billion Type 26 frigate programme, joint patrols and Norwegian strike missile adoption by the UK.

Verified Editor-read GOV.UK press release, 4 December 2025

What it does not test. Does not establish that the GBP 10 billion frigate figure is new money rather than the previously announced Type 26 export order.

How this item counts. This item is dated before the index starts on 1 January 2026, so it does not count in the European Sovereignty Index.

How this item was made. Drafted by an AI system (Claude (Anthropic)) from the source cited above; read and approved by the editor on 2026-10-07. How the record is made

What the tags mean: VerifiedReportedAI-draftedAI-drafted, editor-readHuman-writtenWhat the tags mean

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