A radar network and 'the Few' deny Hitler the sky over Britain
What happened
With France defeated, Germany needed control of the skies over southern England before it could attempt Operation Sealion, its planned invasion of Britain. The Luftwaffe, the largest air force in the world by 1940, opened its main offensive on 13 August, targeting airfields and radar stations before shifting, in a decision later judged a critical German error, to bombing London itself from 7 September onward. That shift gave RAF Fighter Command's roughly 3,000 pilots, flying Hurricanes and Spitfires and directed by the Dowding System, a unified network linking radar, ground observers, and fighter squadrons, time to recover. Nearly a fifth of the pilots credited with the victory were not British at all, drawn from Poland, Czechoslovakia, and across the Commonwealth; the single highest-scoring squadron was Polish, and its top ace was a Czech pilot flying with it.
Why it matters
Britain's victory here was defensive, not decisive on its own, but it denied Hitler the one precondition his own invasion plan required, and four years later the beaches and airfields of a still-unoccupied Britain would launch the invasion that finally reached back into Nazi-occupied Europe.
How we know
RAF squadron records, Luftwaffe loss returns, and the Dowding System's own operations-room logs all survive in enough detail that historians can reconstruct daily sortie counts and losses on both sides for the entire four-month campaign.
Sources
- Imperial War Museums. 8 Things You Need To Know About The Battle Of Britain · Reputable sourceiwm.org.uk · The domain "iwm.org.uk" is on our Reputable source registry.
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