Introduction German Unrestricted Submarine Warfare During World War I and the Implications of This Policy The Interwar Period: The Disarmament Debate and the Submarine American "Neutrality" and German U-Boat Activity in the Atlantic, 1935-1940 German Perceptions of the United States and Military Considerations as Factors in the Decision for Unrestricted Submarine Warfare The German Decision for Unrestricted Submarine Warfare The American Decision for Unrestricted Submarine Warfare--A Consequence of German Practice Implications and Consequences of the Decisions for Unrestricted Submarine Warfare Selected Bibliography Index