On a related note I can strongly recommend The Silent Deep which goes into a lot of detail about what Royal navy submarines got up to in the Cold War:

https://www.amazon.co.uk/dp/B0171SWRGI/ref=dp-kindle-redirec...

e.g. Operation Barmaid, where a nuclear submarines was equipped with a giant set of cutters to allow it to cut and steal the towed sonar array from a Warsaw Pact vessel:

https://en.wikipedia.org/wiki/HMS_Conqueror_(S48)#Operation_...