As was the case in World War II, one of the greatest threats to Britain during World War I was the German U-Boat menace. Gordon Williamson traces the development of the U-Boat from the Brandtaucher, designed by Wilhelm Bauer, the father of the German submarine arm, in 1850, through to the commissioning of Germany's first U-Boat to go into service, the U-1, in 1906. All of the main types of World War I U-Boat are then covered. The operational history of the U-Boat service is also covered in some depth. Included are details of the campaigns in the Atlantic and Mediterranean, along with the slow build-up of anti-submarine measures by the allies.
Gordon Williamson was born in 1957 and currently works for the Scottish Land Register. He spent seven years with the military Police TA and has published a number of books and articles on the decorations of the Third Reich and their winners. He is author of a number of World War II titles for Osprey.