This history of naval activities during the First World War is an intimate panorama that sweeps up many viewpoints with the vivid familiarity of journalism. You are there and often everywhere at once. It begins by showing what dozens of ships and liners were doing when war was declared, revealing the psychology of their actions in heading for one port or another. On the Kronprinz Wilhelm sailors with baseball clubs and flashlights were waging a horrible war against a rat invasion. Panicky Americans were stranded all over Europe while their liners were armed for war. The seas were a fever, with both sides beginning to sink ships. The sinking of the Cap Trafalgar is treated with absorbing incident. Three British cruisers went down, sunk by a single U-boat. Off the Falklands, Count von Spee sent two British ships and 1600 souls to the bottom, and the British Admiralty vowed revenge. The story builds through the disaster at the Dardanelles, through the rise of the U-boat as master of the seas, to the Battle of Jutland. It is all quite readable, never dull.