The Battle of Britain was a decisive battle during World War II, and was fought in the skies above Britain between 10 July and 31 October 1940. Had the Battle been lost, Britain would have almost certainly been invaded by Nazi Germany.
RAF Bentley Priory played a pivotal role during the Battle of Britain as Headquarters Fighter Command.
The above photo shows King George VI and Queen Elizabeth with Air Chief Marshal Sir Hugh Dowding, Commander-in-Chief of RAF Fighter Command, at RAF Bentley Priory in September 1940. (C) IWM (CH 1233)