Tomorrow, September 15th, marks Battle of Britain Day—the annual day of national remembrance dedicated to one of the most critical turning points in modern history.

Eighty-six years ago in the summer and autumn of 1940, the skies over Southern England became an aerial battlefield. With Western Europe under occupation, the Royal Air Force (RAF) stood as the final barrier against a full-scale Axis invasion.

As we prepare to pause, reflect, and look to the skies tomorrow, here is why September 15th holds such a sacred place in British aviation heritage—and how you can commemorate "The Few."

Why September 15th?

While the Battle of Britain raged continuously from July 10 to October 31, 1940, September 15th was chosen as the primary day of commemoration because it witnessed the largest and most decisive aerial dogfight of the entire campaign.

On that Sunday in 1940, the German Luftwaffe launched an all-out, multi-wave assault involving over 1,500 aircraft aimed directly at London, hoping to draw out and destroy the RAF Fighter Command once and for all.

Instead, Fighter Command scrambled every available squadron—including the iconic Supermarine Spitfires and Hawker Hurricanes. In hours of furious air combat over London and the South East, British and Allied pilots repelled the massive formations, inflicting heavy losses and proving that the RAF could not be broken. Just two days later, plans for Operation Sea Lion (the invasion of Britain) were postponed indefinitely.

"Never Was So Much Owed by So Many to So Few"

The defence of Britain was not achieved by machines alone, but by the extraordinary bravery of young pilots and ground crews. Prime Minister Winston Churchill immortalised their courage in his historic address to Parliament:

"Never in the field of human conflict was so much owed by so many to so few."

The 2,938 airmen who flew for RAF Fighter Command during the battle came from all corners of the globe. Alongside British airmen flew pilots from Poland, New Zealand, Canada, Czechoslovakia, Belgium, Australia, South Africa, France, Ireland, the United States, and Southern Rhodesia. Over 500 of "The Few" lost their lives during those perilous months, with hundreds more wounded.

Ground crews, radar operators, the Observer Corps, and factory workers—many of them women—worked around the clock to keep aircraft fueled, armed, and airworthy.

How to Mark Battle of Britain Day Tomorrow

1. Pause for Silence: Take a moment tomorrow at 11:00 AM to honour the sacrifices made by the pilots, ground crews, and civilians who lived through the Blitz.

2. Visit a Historic Airfield or Museum: Places like IWM Duxford, RAF Museum London, RAF Museum Midlands, and the Battle of Britain Memorial at Capel-le-Ferne offer incredible tributes to the men and machines of 1940.

3. Listen for the Roar of the Merlin Engine: Keep an eye out for commemorative flypasts across the country, often featuring historic aircraft from the Battle of Britain Memorial Flight (BBMF).

4. Wear Your RAF Heritage: Displaying your support through RAF merchandise helps to keep the memory of "The Few" alive for future generations.

Tomorrow is a day to reflect on the courage, resilience, and unity that defined an era. Their legacy lives on every time a Spitfire takes to the skies.

How are you marking Battle of Britain Day tomorrow? Share your stories, family connections, or favourite warbird photos with us @airforcegiftshop on Instagram, Facebook and TikTok!