Unternehmen Cerberus
In February 1942 the German battleships "Scharnhorst" and "Gneisenau" escaped from Brest, France in the Channel Dash, undetected until they were well into the English Channel. German ground forces had gradually increased the jamming of British radar over a period of weeks, and British operators had not realised this was happening. In the aftermath, Lord Mountbatten and Winston Churchill approved plans for a raid on the German radar station at Bruneval, near Le Havre. The Biting raid captured a German Wurzburg radar system and a radar operator.