German submarine ;
No warships were sunk; some support vessels were sunk by mines.
There were no submarines sunk or damaged during the attack on Pearl Harbor; all vessels either sunk or damaged were capital ships (battleships, cruisers, etc.) or support vessels (tenders, tugs, etc.).
Counting warships & merchantman, US subs sunk about 1,000 vessels.
It affected American overseas trade because pirates from nations along the cost of North Africa attacked vessels from Europe and the United states.
Germany:U-48 - 52 ships sunk (307,934 tons)United States:By Tonnage - USS Flasher, 100,231 tonsBy Total # Ships Sunk - USS Tautog, 26 total ships
Approximately 36 vessels were sunk and over 336 damaged. See websites: Battle of Okinawa; Kamikazes; and US Destroyers sunk during WW2.
Well over a dozen US Navy riverine boats were sunk in the Vietnam War; Swift Boats (PCF); PBRs (Patrol Boat River), Alpha Boats (ASPB-Assault Support Patrol Boats); unknown number of Monitors sunk, if any. The ex-USN Aircraft Carrier USS Card was sunk by communist sappers in harbor in South Vietnam.
The Embargo Act placed a restriction on trade after European ships harassed US vessels.
Caroline
Reuban James.
spanish american war
Possibly well over 2,000 merchant vessels were sunk.