Former US naval intelligence officer Bath describes how his own area (before he was in it) was as responsible as Allied warships in the successful 1942-43 campaign against German U-boats known as the Battle of the Atlantic. He describes the cooperation at all levels, in all theaters of war, and at all points in the cycle from gathering through analysis to dissemination. He also considers the naval intelligence in the South Pacific, throughout highlighting the contributions of Britain and other Commonwealth states. Annotation copyrighted by Book News, Inc. , Portland, OR