Unternehmen Cerberus
"Scharnhorst"s sister "Gneisenau", damaged by a mine and a submerged wreck in the Channel Dash of 13 February 1942 and repaired, was further damaged by a British air attack on 27 February 1942. She began a conversion process to mount six guns instead of nine guns, but in early 1943 Hitler (angered by the recent failure at the Battle of the Barents Sea) ordered her disarmed and her armament used as coast defence weapons. One 28 cm triple turret survives near Trondheim, Norway.