Mines and deck guns account for important parts of submarine warfare that a torpedo-centred narrative can miss. German submarines could pass Gibraltar and attack traffic in the Mediterranean, including shipping coming from Suez. Japanese forces gained anti-submarine experience through Mediterranean patrols as well as taking German possessions in the Far East. The danger of wartime mines also shaped Royal Navy expectations at the beginning of World War II. The attempted recollection of individual U-boat commanders is uncertain, so the operational examples here do not depend on those identities.
Chapter · 48:37-50:31
Mines, deck guns, and Japanese patrols in the submarine war
Submarine minelaying, deck-gun attacks, and Mediterranean patrols broaden the familiar torpedo-centred picture of the naval war.