After going to see the movie, DUNKIRK, and being rather depressed by it I decided to read THE MIRACLE OF DUNKIRK, by Walter Lord. This is the definitive account of what happened in May 1940. If you want to know the true and whole story of what happened I commend this magnificent account to you.
I remember visiting Dunkirk in 1967 and viewing the beaches where all the action took place.
Walter Lord also authored the bestseller DAY OF INFAMY on the attack on Pearl Harbor.