This 1921 Pulitzer Prize awarded history has been written in response to a demand for some account of the generally very misunderstood German submarine campaign in the World War I and particularly of the means by which it was defeated. The interest of the public in such a story is due to the fact that during the war the sea forces were compelled to take all possible precautions to keep the enemy from learning anything about the various devices and means used to oppose or destroy the under-water craft.

Contents:

When Germany Was Winning the War

The Return of the "Mayflower"

The Adoption of the Convoy

American Destroyers in Action

Decoying Submarines to Destruction

American College Boys and Subchasers

The London Flagship

Submarine Against Submarine

The American Mine Barrage in the North Sea

German Submarines Visit the American Coast

Fighting Submarines from the Air

The Navy Fighting on the Land

Transporting Two Million American Soldiers to France