Select committee: Defence Committee
One-off Session on Undersea Activity
Closed
Opened 2 Feb 2026
Closed 23 Feb 2026
Defence Committee Inquiry on parliament.uk ↗
Inquiry scope (the committee's words)
The Government has highlighted the increasing maritime threat in UK waters and against UK interests further afield. This session is designed to explore the capabilities of adversaries, the threat posed to the UK and the UK response.
Where it stands
The inquiry is closed, opened 2 February 2026.
The committee has not published a report yet.
Evidence
- 1 oral evidence sessionLatest 10 February 2026
- 3 witnesses
Recent activity
- Panel 110 February 2026, Oral evidence
Oral evidence sessions
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| Date | Session and witnesses | Source |
|---|---|---|
| 10 Feb 2026 |
Panel 1
Brett Phaneuf · Submergence Group LLC (USA) / M Subs Ltd (UK),
Commodore (Rtd) John Aitken OBE · Thales,
Professor Peter Roberts · Centre for Public Understanding of Defence and Security, University of Exeter
|
View ↗ |
Who gave evidence
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| Witness | Organisation | Sessions |
|---|---|---|
| Brett Phaneuf · Founder and Chief Executive | Submergence Group LLC (USA) / M Subs Ltd (UK) | 1 |
| Commodore (Rtd) John Aitken OBE · Underwater System Services General Manager | Thales | 1 |
| Professor Peter Roberts · Associate Fellow | Centre for Public Understanding of Defence and Security, University of Exeter | 1 |