British Home Guard

Home Guard initially "Local Defence Volunteers"
Home Guard post at Admiralty Arch in central London, 21 June 1940.
Active	14 May 1940 – 3 December 1944
Country	United Kingdom
Branch	British Army
Role	Defence from invasion
Disbanded	31 December 1945

The Home Guard (initially "Local Defence Volunteers" or LDV) was a defence organisation of the British Army during the Second World War. Operational from 1940 until 1944, the Home Guard was composed of 1.5 million local volunteers otherwise ineligible for military service, such as those too young or too old to join the services, or those in reserved occupations–hence the nickname "Dad's Army". Their role was to act as a secondary defence force, in case of invasion by the forces of Nazi Germany and their allies. They were to try to slow down the advance of the enemy, even by a few hours in order to give the regular troops time to regroup. The Home Guard continued to guard the coastal areas of the United Kingdom and other important places such as airfields, factories and explosives stores until late 1944 when they were stood down, and finally disbanded in December 1945.

There was a Home Guard during the First World War (the Volunteer Training Corps) although this was not on the same scale as its Second World War successor. The origins of the Second World War Home Guard can be traced to Captain Tom Wintringham, who returned from the Spanish Civil War and wrote a book entitled How to Reform the Army. In the book, as well as a large number of regular army reforms, Wintringham called for the creation of 12 divisions similar in composition to that of the International Brigades which had been formed in Spain during the conflict; the divisions would be raised through a process of voluntary enlistment targeting ex-servicemen and youths. Despite great interest by the War Office in the book's assertion that 'security is possible', Wintringham's call to train 100,000 men immediately was not implemented.

When Britain declared war on Nazi Germany on 3 September 1939, debates began in official circles about the possible ways in which the German military might launch an invasion of Britain; in the first week of the conflict numerous diplomatic and intelligence reports seemed to indicate that there was the possibility of an imminent German amphibious assault. Many government ministers and senior army officials including the Commander in Chief Home Forces, General Walter Kirke, believed that the threat of invasion was greatly exaggerated and were sceptical but others were not, including Winston Churchill the newly installed First Lord of the Admiralty. Churchill argued that some form of home defence force should be raised from members of the population who were ineligible to serve in the regular forces but wished to serve their country; in a letter he wrote to Samuel Hoare, the Lord Privy Seal on 8 October 1939, Churchill called for a Home Guard force of 500,000 men over the age of 40 to be formed. At the same time that government officials were debating the need for a home defence force, such a force was actually being formed without any official encouragement; in Essex, men not eligible for call-up into the armed forces were coming forward to join the self-styled 'Legion of Frontiersmen'. Officials were soon informed of the development of the legion, with the Adjutant-General, Sir Robert Gordon-Finlayson, arguing that the government should encourage the development of more unofficial organisations. However, the fear of invasion quickly dissipated as it became evident that the German military was not in a position to launch an invasion of Britain, and official enthusiasm for home defence forces waned, and the legion appears to have dissolved itself at the same time.