Rear-Admiral Chadwick is one of the most influential friends of the United States navy; he has written extensively on diplomatic and naval topics, and is the author of “Causes of the Civil War” in the “American Nation Series.” He is also much interested in problems of municipal government, is a member of the Newport Representative Council, a member of the National Institute of Arts and Letters, corresponding member of the Massachusetts Historical Society, member of the American Historical Association, etc. INTRODUCTION The navy in all countries has ever been, and, as far as we can now judge, ever will be, a preëminent instrument of government. It was through her navy that Greece destroyed the power of Persia; Rome that of Carthage; the allies at Lepanto that of the Turks; England that of Holland and later that of France in America; the navy of France, in turn, caused the relinquishment of Great Britain’s sovereignty over the thirteen colonies which formed the United States, and a generation later it was the British navy which made the efforts of the great Napoleon the “baseless fabric of a vision.” Coming to days within the ken of many still living, the navy was the power which made possible the preservation of the Union in our great Civil War by the cutting off of the Southern Confederacy from its means of support by sea and reducing its forces thereby to practical inanition. For had the Confederacy had free access to the sea and control of the Mississippi River, no armies of the North could have conquered well-supplied armies of the South. So, too, the control of the sea decided the outcome of the Spanish War. When Sampson’s fleet destroyed Spain’s only battle squadron off Santiago de Cuba, Spain could no longer reinforce her army in Cuba, and surrender was a necessity. Even as this is written Germany’s every sea outlet is closed by the British fleet, so superior in number to the German, and German commerce on the sea is for the time entirely swept away, leaving Great Britain for the moment navally and commercially supreme upon the ocean. As one attempts to look into the future the vastness of the possible changes startles the imagination, but in it all is ever present the power that goes with the ubiquitous warship, from whose threat no port of the world is free. Military power fades to insignificance, through its narrow limits of mobility, when compared with the meaning of a great fleet. The present sketch of history is to show what the warship has done for us. THE AMERICAN NAVY CHAPTER I