The sinking of U boat 'U-138'

18th June 1941: Flooded U-boat forced to the surface by depth charges

Admiral Karl Donitz, commander of the U-Boat fleet, watches the U-94 return from patrol at the French port of St Nazaire, June 1941. He was about to award the Knight’s Cross of the Iron Cross to her commander, Kapitänleutnant Herbert Kuppisch.

The Battle of the Atlantic continued unabated, as German U-boats sought to sink the ships bringing the supplies …