The invasion of Normandy was very bloody and as detailed in Saving Private Ryan very brutal with many casualties. My question is of the military tactics. The date of the invasion was secret,but why weren't the German Bunker positions bombed by allied forces just 20 minutes before the first troops landed. When our invading force was 10 miles off shore the element of surprise was over. Bombing wouldn't tell the Germans anything they didn't already know. I know bombing wasn't nearly as accurate as it is today, but even if it knocked out a few bunkers , it might have made the invasion a little easier.