Setting the scene
After France fell in June 1940, Britain stood alone against Nazi Germany. Hitler planned Operation Sea Lion, the invasion of Britain, but knew he needed air superiority to prevent the Royal Navy from destroying his invasion barges. The Luftwaffe, commanded by Hermann Göring, had 2,600 aircraft, including 1,100 bombers and 900 fighters. The Royal Air Force Fighter Command, led by Air Chief Marshal Hugh Dowding, had just 640 fighters—Hurricanes and Spitfires. The British had two critical advantages: radar (Chain Home stations detected incoming raids) and an integrated command system that directed fighters efficiently. The battle began on July 10, 1940, with Luftwaffe attacks on Channel shipping.
What happened
The main assault began on August 13, 'Eagle Day,' with massive raids on RAF airfields. From August 24 to September 6, the Luftwaffe flew 1,000 sorties per day, targeting airfields and radar stations. RAF airfields were cratered, and pilot losses were severe—Britain was losing experienced pilots faster than they could be replaced. On September 7, Göring made a critical error: after a British bombing raid on Berlin, Hitler ordered the Luftwaffe to shift from airfields to bombing London—the Blitz. This gave the RAF breathing space to repair airfields and train new pilots. The climax came on September 15, when the Luftwaffe launched massive daylight raids on London and was repulsed with heavy losses—60 German planes shot down versus 26 British. Hitler postponed the invasion indefinitely.
Why it still matters
The Battle of Britain, which officially ended on October 31, 1940, was Hitler's first major defeat and prevented a German invasion. The RAF lost 1,542 aircraft and 544 pilots (the 'Few' Churchill immortalized: 'Never in the field of human conflict was so much owed by so many to so few'). The Luftwaffe lost 1,887 aircraft. The battle proved that air power alone could not win wars and demonstrated the importance of radar, integrated air defense, and industrial capacity—Britain outproduced Germany in fighters throughout the battle. It kept Britain in the war, providing the essential base for D-Day four years later. The battle remains a defining moment of British national identity, symbolizing resistance against overwhelming odds.
Background
The Battle of Britain was a military campaign of the Second World War, in which the Royal Air Force (RAF) and the Fleet Air Arm (FAA) of the Royal Navy defended the United Kingdom against large-scale attacks by Nazi Germany's air force, the Luftwaffe. It was the first major military campaign fought entirely by air forces. It takes its name from the speech given by Prime Minister Winston Churchill to the House of Commons on 18 June, 1940: "What General Weygand called the 'Battle of France' is over. I expect that the Battle of Britain is about to begin.". RAF resistance forced Germany to postpone invasion plans.