The fortifications for the defence of our sea-coast and land frontiers will be discussed hereafter.[[15]]
Jomini's work on the Military Art contains many valuable remarks on this subject of Military Polity: also the writings of Clausewitz, Dupin, Lloyd, Chambray, Tranchant de Laverne, and Rudtorfer. Several of these questions are also discussed in Rocquancourt, Carion-Nisas, De Vernon, and other writers on military history. The several European Annuaires Militaires, or Army Registers, and the French and German military periodicals, contain much valuable matter connected with military statistics.
CHAPTER VII.
SEA-COAST DEFENCES.
The principal attacks which we have had to sustain, either as colonies or states, from civilized foes, have come from Canada. As colonies we were continually encountering difficulties and dangers from the French possessions. In the war of the Revolution, it being one of national emancipation, the military operations were more general throughout the several states; but in the war of 1812 the attacks were confined to the northern frontier and a few exposed points along the coast. In these two contests with Great Britain, Boston, New York, Philadelphia, Baltimore, Washington, Charleston, Savannah, Mobile, and New Orleans, being within reach of the British naval power, and offering the dazzling attraction of rich booty, have each been subjected to powerful assaults.
Similar attacks will undoubtedly be made in any future war with England. An attempt at permanent lodgment would be based either on Canada or a servile insurrection in the southern states. The former project, in a military point of view, offers the greatest advantages, but most probably the latter would also be resorted to for effecting a diversion, if nothing more. But for inflicting upon us a sudden and severe injury by the destruction of large amounts of public and private property, our seaport towns offer inducements not likely to be disregarded. This mode of warfare, barbarous though it be, will certainly attend a conflict with any great maritime power. How can we best prepare in time of peace to repel these attacks?