U-boats vs Destroyer Escorts: The Battle of the Atlantic

Winston Churchill claimed the 'U-boat peril' was the only thing that frightened him during World War II.

The U-boat was developed from a small coastal vessel into a state-of-the-art killer, stalking the high seas picking off merchant convoys, until the introduction of the destroyer escort, and the development of dedicated anti-submarine tactics provided a means of defence and attack against the U-boats.

Gordon Williamson describes the design and development of these two deadly opponents, the...