Dad’s Army, the sitcom to end all sitcoms, portrayed the Home Guard as often doddery veterans. In one episode, Private Godfrey’s genteel sisters are seen to prepare their Regency cottage for the feared Hitler invasion. ‘The Germans are coming, Miss Godfrey,’ Lance Corporal Jones warns. ‘Yes I know, so many people to tea,’ she chirrups, adding: ‘I think I’d better make some more.’ In contrast to Godfrey, the sitcom’s street-smart spiv Joe Walker could be relied on to come up with the goods. In his rakish trilby indeed he supplies the platoon with contraband cigarettes and is familiar with the legendary backs of lorries what things fall off of.
Leo McKinstry, in his pacey account of Hitler’s plan to invade Britain, tells us that Home Guard recruits were usually of a certain age. The oldest recorded volunteer, at 78, had taken part in the campaign to relieve General Gordon in 1885. Still many of them helped to man Britain’s Maginot-like anti-invasion defences along the south coast with their pillboxes, anti-tank obstacles, roadblocks and gun-emplacements. Hitler’s long-awaited assault in 1940 was not foiled by the RAF alone, says McKinstry; the resistance involved the home front too.
The story has been told many times before. Operation Sealion, Nazi Germany’s plan to overrun Britain following the fall of France in July 1940, required both air and naval superiority over the Channel. Hitler achieved neither. Numerically, the German Navy was inferior to the Royal Navy and Hitler had no specialised landing craft. On 17 September 1940 he therefore postponed his plan indefinitely and turned his eye instead to the Eastern Front.
Had it succeeded, Operation Sealion would have involved the liquidation of British Jewry and implementation of breeding programmes to augment Aryan herrenvolk. (Scotland was judged to have a suitably large number of Nordic-type women.)

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