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.
From left: Neville Chamberlain, French Prime Minister Edouard Daladier, Adolf Hitler, Italian dictator Benito Mussolini and Italian foreign minister Count Ciano. The Czechs played no part in the discussions. The Agreement was signed at 2.00am on 30 September. Its terms allowed Hitler’s forces to move into the Sudetenland the following day.

From left: Neville Chamberlain, French Prime Minister Edouard Daladier, Adolf Hitler, Italian dictator Benito Mussolini and Italian foreign minister Count Ciano. The Czechs played no part in the discussions. The Agreement was signed at 2.00am on 30 September. Its terms allowed Hitler’s forces to move into the Sudetenland the following day.
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The name given to Britain’s policy in the 1930s of allowing Hitler to expand German territory unchecked, appeasement was instituted in the hope of avoiding war. Most closely associated with British Prime Minister Neville Chamberlain, it is now widely discredited as a policy of weakness. Yet at the time, it was a popular and seemingly pragmatic policy.
Hitler’s expansionist aims became clear in 1936 when his forces entered the Rhineland. Two years later, in March 1938, he annexed Austria. At the Munich Conference that September, Neville Chamberlain seemed to have averted war by agreeing that Germany could occupy the Sudetenland, the German-speaking part of Czechoslovakia. In Britain, the Munich Agreement was greeted with jubilation. However, Winston Churchill, then estranged from government and one of the few to oppose appeasement of Hitler, described it as ‘an unmitigated disaster’.
Appeasement was popular for several reasons. Chamberlain – and the British people – were desperate to avoid the slaughter of another world war. Britain was overstretched policing its empire and could not afford major rearmament. Its main ally, France, was seriously weakened and, unlike in the First World War, Commonwealth support was not a certainty. Many Britons also sympathised with Germany, which they felt had been treated unfairly following its defeat in 1918.
But, despite his promise of ‘no more territorial demands in Europe’, Hitler was undeterred by appeasement. In March 1939, he violated the Munich Agreement by occupying the rest of Czechoslovakia. Six months later, Germany invaded Poland and Britain was at war.


Winston Churchill addresses a crowd following his electoral victory in Epping on 15 November 1935. Churchill, then not in power, denounced appeasement but did not call for a war to topple Hitler. From 1933 to the outbreak of war, he continually advocated rearmament and strong defensive alliances with France and the Soviet Union. However, it is by no means certain that the Second World War would have been averted if Churchill’s ideas had been put into practice.
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The Prime Minister Neville Chamberlain makes a broadcast speech prior to his departure from Arras, France, after visiting the British Expeditionary Force on 15 December 1939. Britain and France declared war on Germany on 3 September 1939, two days after the German invasion of Poland. The guarantees given to Poland by Britain and France marked the end of the policy of appeasement.
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