“Their finest hour”

On this day, in 1940, the Luftwaffe began an aerial bombing campaign against the United Kingdom, in what has become known as the “Battle of Britain.” The British ultimately prevailed, with 544 aircrew killed, 422 aircrew wounded, and 1,547 aircraft destroyed, while the Luftwaffe lost 2,698 aircrew and 1,887 aircraft. Britain’s victory prevented Germany from achieving air superiority and stopped Hitler from launching Operation Sea Lion, an amphibious and airborne assault of Britain. Part of the credit goes to Sir Robert Alexander Watson Watt, who received a patent in Britain in 1935, GB593017, “Improvements in or Relating to Wireless Systems,” for a radar to detect aircraft. His work became the basis of the Chain Home ring of coastal early warning radar stations, which was instrumental in helping detect the approach of Luftwaffe aircraft.Spitfire_and_He_111_during_Battle_of_Britain_1940