Question to the Ministry of Defence:
To ask the Secretary of State for Defence, whether he has had any discussions with his US counterpart on the development of a modified version of the Trident D5 submarine-launched missiles; and if he will make a statement.
The Government has close and regular dialogue with the US Administration on all aspects of nuclear and arms control policy. On 20 December 2017, we published the report 'The United Kingdom's Future Nuclear Deterrent: The Dreadnought Programme, 2017 Update to Parliament', which includes aspects of our work with the US on maintaining the Trident D5 II missile and associated UK warhead.