Question to the Ministry of Defence:

To ask Her Majesty's Government, further to the reply by Lord Ahmad of Wimbledon on 12 January (HL Deb, col 1083), whether they have anything further to add about whether one of the UK's Trident submarines is always on patrol.

Since April 1969, there has always been at least one Royal Navy nuclear-armed submarine at sea keeping us safe from the most extreme threats to our national security and way of life. We will maintain four deterrent submarines to ensure at least one will always be on a Continuous At Sea Deterrence patrol.