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.
By this stage of the war, Allied air superiority allowed raids to be flown in daylight. The bomber offensive remains controversial, but the Allied campaign against Germany’s synthetic oil industry in the last months of the war had a major impact on fuel production and left the German armed forces virtually paralysed.

By this stage of the war, Allied air superiority allowed raids to be flown in daylight. The bomber offensive remains controversial, but the Allied campaign against Germany’s synthetic oil industry in the last months of the war had a major impact on fuel production and left the German armed forces virtually paralysed.
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The Second World War witnessed a major leap in the effectiveness of military aircraft. Advances in technology permitted bigger, faster and more capable designs. Radar provided the means to fly and fight in the dark, and the first jet aircraft were in service at the war's end.
In the early years, the German Air Force controlled the skies above Hitler's armies and served as flying artillery. This requirement for local air superiority, and the use of ground attack aircraft, became common to all battlefronts as the war progressed. Aircraft came to dominate the skies over the oceans too. The once-mighty battleship proved acutely vulnerable, and even submarines could be sunk from the air.
Strategic bombing put civilians and workers in the front line. Germany was first to attack city targets, but the Allied bomber offensive was vastly more destructive. Air power reached a terrible climax with the nuclear bombing of Japan.


Bristol Beaufighter Mk Xs of No. 404 Squadron RCAF on a training sortie from Dallachy in Scotland, February 1945. These rocket-armed strike aircraft took part in operations against enemy shipping off the Norwegian coast. As the war progressed, Germany’s supplies of iron ore and other strategic materials from neutral Sweden were successfully interdicted by the RAF’s anti-shipping squadrons.
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