It is happening already.
AI summary:
The Royal Navy is undergoing significant modernisation, with
new classes of ships currently under construction.
Key additions include Type 26 City-class anti-submarine frigates, Type 31 Inspiration-class general-purpose frigates, Dreadnought-class nuclear submarines, and Fleet Solid Support ships, aimed at increasing the fleet's capacity by the 2030s.
GOV.UK
+3
Key New Vessel Programs:
Type 26 (City Class) Frigates: Eight advanced anti-submarine warfare vessels are planned. The first, HMS Glasgow, Cardiff, and Belfast, are expected before 2030, with five more to follow.
Type 31 (Inspiration Class) Frigates: Five vessels (HMS Venturer, Active, Formidable, Bulldog, and Campbeltown) are being built in Scotland, designed for flexibility and to be in service by the early 2030s.
Dreadnought-class Submarines: The next generation of ballistic missile submarines (four in total) is currently under construction to replace the Vanguard class.
Fleet Solid Support (FSS) Ships: New vessels to support the Royal Fleet Auxiliary (RFA), including the recently initiated RFA Resurgent, built to sustain aircraft carriers.
Type 32 Frigates: Planned for the future to further bolster the escort fleet, though these remain in the early concept phase as of 2026.
GOV.UK
+6
The strategy emphasises a hybrid fleet, combining traditional crewed warships with increasing numbers of uncrewed, automated vessels for specialised missions.
The House of Commons Library
+1
Unfortunately it takes a considerable time to build these ships, so we can’t increase our capacity overnight.