A Game Of Birds and Wolves
A fascinating history of a training operation in World War II. A retired naval officer, Gilbert Roberts, was tasked to find a way to train destroyer captains to cope with submarine wolf packs. Because his superiors thought this a waste of time (and because there was no time to waste), he was assigned people nobody wanted — in particular, he got assigned a bunch of women from the Women's Royal Naval Service, the WRENS. Together, they devised a simulation of sufficient depth that not only could captains learn new doctrine, but they could (and did) learn it from women.