The mission of the destroyer HMS Campbeltown to destroy the dry dock at St. Nazaire, the only dock large enough to repair Germany's giant battleship Tirpitz, thus making Britain's Atlantic sea operations safer.
A British commando assault on Vaagso, Norway, in December 1941, which duped Hitler into committing and ultimately wasting 250,000 Nazi troops, who were pinned down there for the rest of the war.