17 days signalled the start of the campaign which ended World War II in Allies . Many myths have subsequently developed about the events in Normandy , says historian . Sherman says The Royal Navy was not just an American venture . He also argues that American soldiers were not better trained than the Allies .
D-Day signalled the start of the campaign which ended World War II in Europe . Many myths have subsequently developed about the events in Normandy , says historian . James Holland says Operation Overlord was not just an American venture . He also argues that German soldiers were not better trained than the Allies .