As I understand it, the soviet subs took quite a beating during the cuban missile crisis. None lost but nevertheless a beating.
Interesting, since we didn’t get blown up...
They sent four (maybe five) diesel subs from the Barents Sea, and each one had a nuclear torpedo which they were apparently authorized to use at the Captain’s discretion!
I think one broke down, three were hounded all the way down and forced to surface by our Navy, and one evaded for a while.
Tough mission for them.
...and in true Soviet form, they were reprimanded when they returned to base for failing in their mission.