The Home Guard — officially the Local Defence Volunteers until Churchill renamed them — was formed in May 1940 in response to the very real threat of German invasion. Within 24 hours of Anthony Eden's radio appeal, 250,000 men had volunteered. By its peak, the Home Guard numbered 1.5 million.
While the BBC's beloved sitcom "Dad's Army" created an enduring image of bumbling elderly men with pitchforks, the reality was far more serious. The Home Guard included veterans of the First World War, men in reserved occupations, and teenagers too young for regular military service. They manned coastal defences, guarded key installations, and prepared to fight a guerrilla campaign if Britain were invaded.
The most secret aspect of Britain's home defence was the Auxiliary Units — hand-picked Home Guard volunteers trained in sabotage, guerrilla warfare, and assassination. Operating from hidden underground bunkers, they were tasked with operating behind enemy lines if Germany invaded. Their existence remained classified until the 1990s.
Home Guard service was not without danger. Over 1,200 members were killed during the war, many during air raids while manning anti-aircraft batteries, on bomb disposal duty, or in training accidents. The Home Guard was stood down in December 1944 when the invasion threat had passed.
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