"The Allied landings in 1944 had all the prospects for disaster. Churchill thought he would be woken up to be told of massive casualties. Eisenhower prepared a somber broadcast announcing that the enterprise had failed.<br> <br> The specter of failure was always present. After a failed landing the Nazi regime would have regained the ascendant. New, terrifying bombs and rockets were ready to be launched. Long-distance submarines were in the final stage of development. The last million Jews of Europe were listed for deportation and death.<br> <br> Failure at Normandy could have given Hitler the chance of continuing to rule western Europe, particularly if the United States, bloodied and defeated in Normandy, had decided-after two and a half years of focusing on Europe-to turn all its energies to the ever-growing demands of the Pacific, leaving Europe to its own devices. Had that happened, I doubt if I would have been alive to write this book, or free to express my opinions without fear of arrest."<br> --Martin Gilbert