This reasoning shows that to carry out the plans of strategy, logistics would have to provide plans and means to execute those plans, whereby our existing fleet, plus all the additions which strategy demanded, would be waiting at whatever points on the ocean strategy might indicate, before the coming enemy would reach those points. In other words, logistics must make and execute such plans that all the fleet which strategy demands will be at the selected points in less than two weeks from the time the enemy leaves the shores of Europe.
Of course, the conditions will not necessarily be such that strategy will demand that all our reserve ships, especially the oldest ships, shall go out to sea with the active fleet, ready to engage in battle. Maybe some of them will be found to be so slow and equipped with such short-range guns, that they would be an embarrassment to the commander-in-chief, instead of an assistance. Unless it is clear, however, that any ship, especially a battleship, would be an embarrassment, her place is clearly with the fighting fleet. The issue of the battle cannot be known in advance; and as everything will depend upon that issue, no effort and no instrument should be spared that can assist in gaining victory. And even if the older ships might not be of material assistance in the early stages of a battle, they would do no harm because they could be kept out of the way, if need be. In case either side gains a conclusive victory at once, the older ships will do neither good nor harm; but in case a decisive result is not at once attained, and both sides are severely damaged, the old ships, held in reserve, may then come in fresh and whole, like the reserve in land engagements, and add a fighting force which at that time will be most important and may be decisive.
Probably some of the ships will be too old, however, to fill places of any value in the active fleet. These should be fully manned and equipped, however, for there will be many fields of usefulness for them. One field will be in assisting the land defenses, in protecting the mouths of harbors and mine-fields, in defending submarine bases, and acting as station ships in the coast-defense system.
Second Object.—To repel an enemy expedition, striving to establish a base in the Caribbean, preparation would have to be made for as prompt a mobilization as possible; for although the threat of invasion of our coast would not carry with it the idea of such early execution as would a direct attack on New York, yet the actual establishment of a base so near our shores would give such advantages to a hostile nation for a future invasion, that measures to prevent it should be undertaken with the utmost possible thoroughness and despatch; because the operation of establishing a base involves many elements of difficulty that an active defender can hinder by aeroplane attacks, etc.; whereas, after a base has once been established and equipped with appropriate defenses, attacks upon it are much less productive of results.
The endeavor to establish a base and the opposing effort to prevent it, will offer many opportunities for excellent work on both sides. Practically all the elements of naval force will be engaged, and events on the largest possible scale may be expected. The operations will naturally be more extended both in time and distance than in the case of a direct attack upon our coast, and therefore the task of logistics will be greater. Actual battle between large forces; minor engagements among aircraft, scouts, submarines, and destroyers; attacks on the train of the invader—even conflicts on shore—will be among the probabilities.
Third Object.—To send a large expedition to carry out naval operations in far distant waters—in the south Atlantic, for instance, to prevent the extension of a monarchical government in South America, or in the western Pacific to defend our possessions there—calls for plans involving more logistical calculation and execution, but permitting a more leisurely procedure. The distances to be traversed are so great, the lack of bases is so distinct and so difficult to remedy, and the impossibility of arriving in time to prevent the seizing of land by any hostile expedition is so evident, that they combine to necessitate great thoroughness of preparation and only such a measure of despatch as can be secured without endangering thoroughness. Whether the projected expedition shall include troops, the conditions at the time must dictate. Troops with their transports will much complicate and increase the difficulties of the problem, and they may or may not be needed. The critical results can be accomplished by naval operations only; since nothing can be accomplished if the naval part of the expedition fails to secure the command of the sea; and the troops cannot be landed until it has been secured, unless the fact of securing it can safely be relied on in advance. For these reasons, the troops may be held back until the command of the sea has been secured, and then sent out as an independent enterprise. This would seem the more prudent procedure in most cases, since one successful night attack on a group of transports by an active enemy might destroy it altogether.
But whether a military expedition should accompany the fleet, or follow a few hundred miles behind, or delay starting until command of the sea has been achieved, it is obvious that the logistic calculations and executive measures for sending a modern fleet to a very distant place, and sustaining it there for an indefinite period, must be of the highest order of difficulty. The difficulty will be reduced in cases where there is a great probability of being able to secure a base which would be able to receive large numbers of deep-draft ships in protected waters, to repair ships of all classes that might be wounded in battle, and to store and supply great quantities of ammunition, food, and fuel.
No expedition of such magnitude has ever yet been made—though some of the expeditions of ancient times, such as the naval expedition of Persia against Greece, B. C. 480, and the despatch of the Spanish Armada in more recent days, may have been as difficult, considering the meagreness of the material and engineering resources of those epochs.
But even if no military force accompanies the expedition, the enormous quantities of fuel, supplies, ammunition, medical stores, etc., that will be required, especially fuel; the world-wide interest that will be centred on the expedition; the international importance attaching to it; and the unspeakable necessity that the plans shall underestimate no difficulty and overlook no factor, point with a long and steady finger at the necessity of attacking this problem promptly and very seriously, and of detailing the officers and constructing the administrative machinery needed to make the calculations and to execute the measures that the calculations show to be required.
Static Defense of the Coast.—But besides the mobile fleet which is a nation's principal concern, strategy requires that for certain points on the coast, where large national and commercial interests are centred, arrangements shall be made for what may be termed a "static defense," by vessels, mine-fields, submarines, aircraft, etc., assigned as permanent parts of the defense of these points, analogous to forts on the land. The naval activities of this species of defense will centre on the mine-fields which it is a great part of their duty to defend. To guard these, and to get timely information of the coming of any hostile force or raiding expedition, strategy says we must get our eyes and ears well out from the land. To do this, water craft and aircraft of various kinds are needed; and they must be not only sufficiently numerous over each area to scout the waters thoroughly, but they must be adapted to their purpose, manned by adequate and skilful crews, and organized so as to act effectively together.