Remember, WWII submarines were ineffective until a new breed of rash, almost dangerous, commanders took them over.
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Very competent and aggressive CO’s and crews during the Cold War. Their exploits are legendary.
“Blind Man’s Bluff” was a great book.
Loved the part about the two subs that took turns navigating down to that tapped communications line up in the Sea of Okhotsk (I think, it has been a long time since I read it) and one sub went up once and placed a cattle skull with horns and all on top of the unit, and when the next crew went up (I guess they didn’t have the same cool GPS thingies we have today) so there were long periods of using external cameras to find it, and the guy on the sub nearly shat himself when the skull came into view after hours of boring sand!
I also loved how they found where the secure communications underwater cable was, by looking for signs on the shore that said “No Anchoring Here” just like we have in the States...:)