Historical Turning Points in the German Air Force War Effort - Paperbackby Richard Suchenwirth (Author) This study examines the Luftwaffe's defeat and indicates its major causes, the so called "turning points." The turning point of a war is that certain point at which a decisive change occurs. This change may be for the better; or it may be for the worse, pointing the way to defeat. Dr. Richard Suchenwirth, a well known and somewhat controversial German and Austrian historian, author, teacher and lecturer, was born in