The (German Navy) made two battleship raids against Allied convoys in the Atlantic Ocean during early 1941. Between January and March 1941 the battleships and conducted Operation Berlin, during which they sailed from Germany, successfully attacked Allied shipping and returned to occupied France. A second raid, Operation Rheinübung, was attempted in May and involved the battleship "Bismarck" and heavy cruiser "Prinz Eugen". While the German ships destroyed the British battlecruiser HMS "Hood" on 24 May, "Bismarck" was crippled by Fairey Swordfish torpedo bombers from the British aircraft carrier and sank on 27 May after being bombarded by several British battleships from the Home Fleet. Admiral Sir John Tovey was the commander in chief of this fleet, and led it from the battleship during the battle. The loss of "Bismarck" left her sister ship, "Tirpitz", as Germany's only remaining large battleship. At the time the ship's crew were still being trained.