The Schweinfurt-Regensburg mission - Martin Middlebrook

On 17 August 1943, the entire strength of the American heavy bomber forces in England set out to raid two major industrial complexes deep in southern Germany, the vast Messerschmitt aircraft factory and the vital KGF ballbearing plant. For American commanders it was the culmination of years of planning and hope, the day when their self-defending formations of the famous Flying Fortress could at last perform their true role and reach out by daylight to strike at targets in the deepest corners of industrial Germany. The day ended in disaster for the Americans. Thanks to the courage of the aircrews the bombers won through to the targets and caused heavy damage, but sixty were shot down and the hopes of the American commanders were shattered. Historically, it was probably the most important day for the American air forces during the Second World War.