When the writer was examined for promotion to the grade of lieutenant, he was asked to discuss the occupation of cities. A number of years later, on his examination for the grade of commander, he was asked to describe the organization of a landing force of the strength of one regiment, and to tell how it should be landed, including the measures to be taken for its defense. Although these two questions scarcely scratch the surface of the subject of joint military-naval operations, they serve to indicate that the Navy Department expects naval officers to have some knowledge of the subject.
It is obvious to one who has made a study of naval history that knowledge of the subject of joint military-naval operations is something more than mere general equipment of the naval officer—it is, rather, the foundation and cornerstone of his technical education. Fleets fight battles, and gain victories, but for what purpose? To clear the seas for the movement of troops and trade, to support the Army in its operations at home or abroad.