German U-boat, Nicaraguan freighter discovered off Cape Hatteras in 2014
July 15, 1942. America had been in World War II for less than a year, but the fight was coming to the nation’s shores. That day, off Cape Hatteras, North Carolina, the German U-boat U-576 sank the Nicaraguan-flagged freighter SS Bluefields. But it came at a steep price – the merchant ship convoy and its U.S. military escorts fought back, sinking the U-boat within minutes as U.S. Navy air cover bombed the sub while the merchant ship Unicoi attacked it with its deck gun.

The freighter SS Bluefields was sunk by the German submarine U-576 in July 1942. The wrecks of the two ships were discovered in 2014 off Cape Hatteras, North Carolina, only 240 yards apart. (Image credit: Mariners' Museum)