After defeating France in June 1940, Hitler assumed Britain would sue for peace but ordered his armed forces to prepare for invasion. Hermann Goering assured him that a sustained air assault would destroy the RAF, winning the air superiority needed.
July 1940 saw German planes target shipping in the Channel, drawing the RAF into combat, before radar stations, communications centres and airfields faced round-the-clock bombing in August. The battle reached a climax with attacks on London in September.
Joan 'Elizabeth' Mortimer, Elspeth Henderson and Helen Turner of the WAAF. All three received the Military Medal for courageous conduct during attacks on Biggin Hill airfield. Biggin Hill suffered a total of ten major attacks between 30 Aug and 5 Sept.
A group of pilots of No. 303 (Polish) Squadron RAF return from a sortie. The first Polish squadrons were formed in the summer of 1940. Pilots came from several other countries, including Australia, Canada, Czechoslovakia, New Zealand and the USA.
RAF Duxford was a Sector Station in 12 Group, responsible for defending the Midlands and East Anglia. As the fighting intensified, Duxford's squadrons were called on to support 11 Group's defence of London and the south-east.
Despite incessant attacks, the RAF's defences held. The Luftwaffe could not continue, and in the autumn switched to 'nuisance' raids and night operations. The failure to defeat the RAF convinced Hitler to postpone his invasion plans indefinitely.
Anderson shelters - named after Sir John Anderson – consisted of two curved corrugated sheets of steel, bolted together at the top and sunk three feet into the ground then covered with 18 inches of earth. If constructed correctly, they could withstand the effects of a hundred-pound bomb falling six feet away. However, many Anderson shelters leaked, were cold, dark, and cramped and amplified the noise of falling bombs.

Anderson shelters - named after Sir John Anderson – consisted of two curved corrugated sheets of steel, bolted together at the top and sunk three feet into the ground then covered with 18 inches of earth. If constructed correctly, they could withstand the effects of a hundred-pound bomb falling six feet away. However, many Anderson shelters leaked, were cold, dark, and cramped and amplified the noise of falling bombs.
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During the late 1930s, the British government began to prepare the civilian population for war.
As well as the widely expected and feared bombing raids, it was also thought that poison gas might be used against civilians. Gas masks were issued in 1938 and over 44 million had been distributed by the outbreak of war in September 1939.
The Air Raid Wardens Service was set up in 1937. Wardens were responsible for reporting incidents, reassuring the public and providing Air Raid Precautions (ARP) advice. They were also expected to extinguish small fires, administer first aid and investigate reports of unexploded bombs. The Women's Voluntary Service was set up in 1938 to involve women in ARP.
The first air raid shelters were distributed in 1938. People without the outside space needed to put one up were encouraged to use communal shelters instead. The government was initially reluctant to allow London Underground stations to be used as shelters, although they were later forced to back down.
From 1 September 1939, 'Blackout' was enforced. Curtains, cardboard and paint were used to prevent light escaping from houses, offices, factories or shops, which might be used by enemy bombers to locate their targets. Householders could be fined if they did not comply.
Messengers, ambulance drivers, Heavy Rescue teams and firefighters all proved essential to ARP – from 1941 officially termed Civil Defence - especially during the height of the Blitz.
Almost 7,000 Civil Defence workers were killed during the war.


The Tube, October 1940, by Feliks Topolski. The government initially tried to prevent London Underground stations being used as air raid shelters, fearing the development of a 'deep shelter mentality' and the potential disruption of the capital's transport network. However, Londoners persisted in using the Tube and eventually the government had to reconsider. Aldwych station was closed and converted into a permanent shelter. Improvements such as bunks, better lighting, washing and toilet facilities were made at other stations.
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A member of the Women's Voluntary Service (WVS) hands out replacement clothes to a man who has been bombed out of his home, 1941. The WVS was created in 1938. By the time war broke out on 3 September 1939, it had 165,000 members and by 1941, membership was one million. During the Blitz, the WVS provided a range of post-raid services, including serving refreshments from mobile canteens and providing washing facilities. They also set up enquiry points at the scene and often had to break the news that a family member had been killed or injured.
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Wait! Count Fifteen Slowly Before Moving In the Blackout, 1939. Blackout restrictions did not just cover the home. Street lighting and illuminated signs were extinguished, and all vehicles had to put caps over their lights to dim them. In the early days of the war, people were forbidden even to carry around torches. The blackout caused a steady rise in accidents. A poll published in January 1940 found that since the previous September one person in five had been injured in the blackout.
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Air raid wardens were equipped with gas rattles and whistles to alert the public to a gas attack. Post boxes and lamp posts were painted with a substance which would reveal the presence of gas and identification, and decontamination squads were set up. The public could attend lectures on the different types of gases that might be used and were advised to fill gaps in their windows and doors to prevent gas seeping in.
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The public were urged by the government to carry their gas masks at all times, although it was not a legal requirement to do so. Initially, there were instances where workplaces sent home any employees who did not have their masks, and some places of entertainment refused to allow people to enter without them. During the Phoney War period – from 3 September 1939 to 10 May 1940 - many people stopped carrying their gas masks.
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A double-decker bus in a bomb crater in Balham, South London, October 1941. Sheltering in the London Underground did not guarantee safety. This photograph shows the aftermath of a bomb blast on Balham High Road. Sludge and debris from the resulting crater fell onto the underground platforms below, and broken pipes leaked gas and water and sewage poured in. Sixty-eight people died. In another incident in January 1941, a bomb fell at Bank station, killing a total of 111 people.
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A fire watcher on duty at a factory in Upper Norwood, South London, 1944. German bombers usually dropped a combination of high explosive and incendiary bombs. Incendiaries would quickly start fierce fires unless they were extinguished immediately. To combat incendiaries, people were encouraged to volunteer as fire watchers and to draw up rotas with their neighbours. Air raid wardens issued stirrup pumps and trained people how to use them. Factories and other work places also needed fire watchers, and at the end of 1940, fire watching duty became compulsory.
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Examining the Fuze of a Bomb, 1940, by Edward Ardizzone. Unexploded bombs (UXBs) caused a great amount of disruption. Those living near to UXBs would be evacuated from their homes, and UXBs frequently affected communications and the transport network. Army bomb disposal squads were set up to deal with UXBs, though the Admiralty dealt with parachute mines. Sometimes the bombs would suffer mechanical failure, but time-delay fuses were later introduced to cause maximum havoc. By the end of October 1940, there were over 3,000 UXBs still to be defused.
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Morrison shelters - named after the Home Secretary Herbert Morrison - were produced from January 1941. They consisted of a rectangular steel-and-mesh cage which could accommodate two adults and two children. The Morrison was intended for use indoors, so was suitable for those without gardens. Though more popular than Anderson shelters, they were less effective as they provided no lateral protection. They could also be used as a dining table during daytime.
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