"Lectures delivered ... at the United States naval academy in the winter of 1915-16 to midshipmen."--Introd "The twelve chapters, with one exception, were contributed to the New York times current history magazine. The exception is the sixth chapter,--The Dardanelles operations--which was written to complete the series covering the major naval operations of the war."--Pref Naval power in the war.--Definitions and estimate of the situation.--Opening activities.--Naval action in Heligoland Bight.--Coronel and Falkland engagements.--Dardanelles operations.--North Sea battles.--Submarine warfare.--Anti-submarine tactics.--United States in the war.--Naval lessons of the war.--Appendix: 1. Comparative strength of navies. 2. "Emden" exploits. 3. America's part in the development of naval weapons and tactics