I remember hearing the number of American soldiers that died during the 6 months preceeding the d-day was higher than the number of casualties of the d-day in the tv series « Band of brother ». How accurate is that ?
946 Allies were killed in Exercise Tiger, from both friendly fire, and the torpedoing of a Corvette and 8 LSTs, by a German U-boat which had snuck into Lyme bay, and failed to be properly reported to all the allied navy there. As a result of the deaths, especially of the missing bodies of 10 officers, the D-day invasion was nearly called off until all bodies were found.