This is a superb survey of the fierce naval struggles, from 1939 up to the invasion of the Norway in April 1940. Beginning with the sinking of the German fleet at Scapa Flow in 1919, it then covers the rebuilding of the Kriegsmarine and parallel developments in the Royal Navy, and in the European navies. Focusing on the actions at sea after the fall of Poland, this history covers the sinking of Courageous, the German mining of the British East Coast, the Northern Patrol, the sinking of...