This term was not familiar to me before reading your question PF .... but quick search on Google and ... voila' ....

I have a dear old friend who was in the first group to land on Normandy on D-Day ... I know that he's been interviewed several times in the last 15 years about that because of how few survived the day from that group originally, and then the many years that have passed since then .... he was a young man when it happened. I also feel deeply grateful for the sacrifice of those who were there ... those who made it through and especially to those MANY who did not return.