Sujoy wrote:" The UK's nuclear warhead replacement programme "depends on the U.S. technology development from the W93/Mk7". - Melissa Dalton, U.S. Acting Assistant Secretary of Defense, 10 June 2021
In all these years U.K couldn't even design nuclear warheads ingeniously.
She made public a 'never to be acknowledged fact' that is highly unlikely to be reported in the UK. Other than perhaps by the Scot Nats, but then they want a lever so they will keep quiet too.
An 'independent' deterrent my arse. Only the submarines are independent, their weapon load (the deterrent) is under US control, nicely of course. These boats are just an extension of the USN under a different flag.