Submarine and Anti-Submarine

Written in the midst of World War I by a poet and government adviser with access to classified naval intelligence, this book offers a rare, contemporaneous account of the submarine campaign that transformed warfare at sea. Newbolt traces the submarine's evolution from experimental curiosity to decisive weapon, showing how Germany's U-boat campaign forced the Allies to devise desperate countermeasures: destroyer flotillas, Q-ships rigged as traps, fishing trawlers repurposed as escorts. He captures the extraordinary tension of that cat-and-mouse warfare across the North Sea, the Baltic, and the Sea of Marmora, where passenger liners and hospital ships lived under the constant threat of invisible attack. But what elevates this beyond a technical history is Newbolt's moral argument: that the submarine represented not merely a tactical innovation but a fundamental challenge to the conventions of civilized warfare. He examines how nations justified crossing lines they had once held sacred, and what that crossing cost them.