Forester, C.S. "If Hitler Had Invaded England"
Divergence: 1940 CE
What if: A report on the demoralization of British troops at Dunkirk prompted Hitler to order an invasion of England within three weeks.
Summary: "We know now" that the invasion near Rye on June 30, 1940, failed within three days because England was able to take control of the air within hours of the invasion and because Germany lost control of the Channel a day later.
Published: In London Daily Mail date unknown; Saturday Evening Post, Apr. 16-30, 1960; and Gold from Crete: Ten Stories, Little, Brown 1970, Joseph 1971 (0718108426), and Pinnacle 1976.