Question to the Ministry of Defence:

To ask the Secretary of State for Defence, what recent estimate he has made of when the last of the two submarines of the Astute class will enter operational service.

Planned in-service and out-of-service dates for Royal Navy submarines are withheld as disclosure would, or would be likely to, prejudice the capability, effectiveness, or security of the Armed Forces.

We remain committed to delivering all seven Astute Class submarines.