Beneath the earth's seas moved hundreds of the deadliest craft ever devised: perhaps 500 submarines playing their part in the greatest naval war in history. Manned by the picked men of seven navies, they lay in wait for the kill from the South China Sea to the California Coast, from Long Island to Malaya.
Stalking men of war they kept submerged, sharklike, getting off their wicked torpedoes by sound or at periscope depth. To strike at waddling merchantmen and tankers they often disdainfully surfaced, and opened fire with deck guns almost before the green water had run off their rounded...