To ask Her Majesty's Government when the last Trident D5 missile test took place; and how many Trident D5 missiles the UK has.
27 May 2021
The last Trident D5 missile test took place as part of the Demonstration and Shakedown Operation with HMS Vengeance in 2016. The UK has sufficient Trident II D5 missiles for its needs.
The Dreadnought Class submarines will begin to enter service from the early 2030s. As announced in the Integrated Review of Security, Defence, Development and Foreign Policy we will no longer give public figures for our deployed missile numbers.