In the summer of 1940 the French army was one of the largest and best in the world, confident of victory. In the space of a few nightmarish weeks that all changed as the French and their British allies were crushed and eight million people fled their homes. Richard Vinen's new book describes the consequences of that defeat. It does so not by looking at political leaders in Vichy or Paris or London but rather at those who were caught up in daily horrors of war. It describes the fate of a French prisoner of war who was punished because he wrote a love letter to a German woman, and the fate of a...