European Sovereignty Monitor

Defence and space

Royal Navy names first extra large uncrewed submarine Excalibur

The Royal Navy formally named its first extra large uncrewed underwater vehicle, XV Excalibur, at HMNB Devonport, the result of the three year Project Cetus. Built by Plymouth's MSubs, it joins the Fleet Experimentation Squadron for trials.

Reported AI-drafted Naval News, 15 May 2025

What it does not test. It does not show the vehicle is operationally deployed, only that it was named and handed over for trials.

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 and published under the editor’s responsibility without a person reading it first. How the record is made

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

Previously in Defence and space

VerifiedOpinionAbroadAI-drafted CEPA opinion: Ukraine needs lasting AI cyber defence, EU must operationalise Solidarity Act VerifiedOpinionAbroadAI-drafted CEPA analyst warns China's mineral grip threatens Europe's drone race VerifiedOpinionAI-drafted SWP analyst says Germany and Europe must build long range naval power for sea lanes

All Defence and space news →