Breaking the German Dams

“This was Der Tag for 617 Squadron […] from eight o'clock onwards the scenes outside the crew rooms were something to be remembered." “I watched each Lancaster become airborne from the window of my office but I did go outside to see all the boys roaring away into the fast approaching twilight, and that was a great thrill because they were flying at less than 150 feet from the ground. I just stood and gaped, hardly able to realise the significance of it all.” On the evening of Sunday 16 May, 1943