[Gondring]

He wrote NUCLEAR deterrent, not “Trident deterrent”.

It was "Trident nuclear deterrent."

[the OlLine Rebel]

Nope.

“this amounts to 25% of the UK’s nuclear deterrent”

He meant that the 16 missiles - which happen to be Tridents in this story - are 25% of the UK’s TOTAL deterrent of the nuclear type, not Trident type specifically. When he mentioned land-based he again wrote nothing about any of them being Trident.