Battle of Britain Day 15 September 1940 Author:Alfred Price 75 photographs, 10 diagrams, 6 x 9 — The only full-scale book on Battle of Britain Day — Based on eye-witness testimony and official records — The Battle of Britain had already been raging across the skies for two months when on 15 September 1940 commemorated each year since as "Battle of Britain Day" the Luftwaffe mounted two huge daylight raids o... more »n London. Alfred Prices definitive book is the only full-scale work on the events of this pivotal day. Aiming to establish air superiority Luftwaffe pilots flew 1260 sorties during the day. Faulty intelligence had led them to expect little resistance, and wave upon wave of British aircraft inflicted a grave blow on German morale. Both sides immediately overclaimed their successes that day, but what made it a decisive turning-point was the demonstration to the German High Command that they could not gain air superiority over the Channel. Without this, the German invasion of England became untenable.« less