It was for the records. They were put in temporary graves. When the war was over, the families could do what they wanted with the bodies. There is a big cemetery at Omaha Beach. It's a permanent national cemetery.
Most graves have crosses.
Others have the Star of David. The local people take care of them. We had church services whenever we could. When the men were not fighting and had a break, we would have a service. It would be announced by runners.