Keith Park talks about Air Force day

Part 1 of 1.
Sir Keith Park gives a talk to mark Air Force Day on September17th 1949. He describes how 15th September 1940 was the climax of the Battle of Britain and also D-Day for Hitler's invasion of England, the latter however was postponed permanently and became strategically pinnacle in Germany's loss of the war. Great Britain now recognises Air Force Day officially as September 17th.