JUNE 6 1944: D-Day was a deciding conflict in World War II. But the invasion was not a straightforward attack. From feeding Nazi spies false information on the attack, to developing new technology like the Mulberry harbours, D-Day changed the course of the War for good. Written by historian, author and broadcaster James Holland, D-DAY 1944 is an essential introduction to the naval invasion that began the liberation of Western Europe from the Nazis.