HMS Acasta
I'm sure you all know the story of how in June 1940 the German battleships
Scharnhorst and
Gneisenau caught the British aircraft carrier
Glorious with only two destroyers as escort and no air patrol up, and sank it. They sank one of the escort destroyers too, and the second -
HMS Acasta - put up a smokescreen for cover.
At that point, what do you think they did next? A single 1337 ton destroyer*, all alone facing off against two 35,000-ton battleships. Run away? Surrender? Nope. They turned around and charged headlong straight for the two German ships under cover of the smoke, firing their torpedoes. As the destroyer's captain said to his crew, "The least we can do is make a show. Good luck to you all."
Acasta was literally blown out of the water by the German guns - only one man of her crew survived - but she managed to torpedo
Scharnhorst and cripple her. The German battleship limped home and then had to go into the dockyard for six month of repairs - meaning that Germany's most powerful warship was unavailable when the plans for Operation Sealion were being drawn up. So
Acasta's sacrifice helped save Britain from invasion.
*Yes, her displacement tonnage really was 1337 tons.
