This very brief survey of history shows that every great nation has started from a small beginning and risen sometimes gradually, sometimes rapidly to greatness; and then fallen, sometimes gradually, sometimes rapidly, to mediocrity, dependence, or extinction; that the instrument which has effected the rise has always been military power, usually exerted by armies on the land, sometimes by navies on the sea; and that the instrument which has effected the actual fall has always been the military power of an adversary. In other words, the immediate instrument that has decided the rise and the fall of nations has been military power.
That this should have been so need not surprise us, since nations have always been composed of human beings, influenced by the same hopes and fears and governed by the same laws of human nature. And as the most potent influence that could be brought to bear upon a man was a threat against his life, and as it was the province of military power to threaten life, it was unavoidable that military power should be the most potent influence that could be brought to bear upon a nation.
The history of the world has been in the main a history of war and a narrative of wars. No matter how far back we go, the same horrible but stimulating story meets our eyes. In ancient days, when every weapon was rude, and manipulated by one man only, the injury a single weapon could do was small, the time required for preparation was but brief, and the time required for recuperation after war was also brief. At that time, military power was almost the sole element in the longevity of a tribe, or clan, or nation; and the warriors were the most important men among the people. But as civilization increased, the life not only of individuals but of nations became more complex, and warriors had to dispute with statesmen, diplomatists, poets, historians, and artists of various types, the title to pre-eminence. Yet even in savage tribes and even in the conduct of savage wars, the value of wisdom and cunning was perceived, and the stimulating aid of the poet and the orator was secured. The relative value of men of war and men of peace depended during each period on the conditions prevailing then—in war, warriors held the stage; in peace, statesmen and artists had their day.
Naturally, during periods when war was the normal condition, the warrior was the normal pillar of the state. In how great a proportion of the time that history describes, war was the normal condition and peace the abnormal, few realize now in our country, because of the aloofness of the present generation from even the memory of war. Our last great war ended in 1865; and since then only the light and transient touch of the Spanish War has been laid upon us. Even that war ended seventeen years ago and since then only the distant rumblings of battles in foreign lands have been borne across the ocean to our ears.
These rumblings have disturbed us very little. Feeling secure behind the 3,000-mile barrier of the ocean, we have lent an almost incredulous ear to the story that they tell and the menace that they bear; though the story of the influence of successful and unsuccessful wars upon the rise and fall of nations is told so harshly and so loudly that, in order not to hear it, one must tightly stop his ears.
That war has not been the only factor, however, in the longevity of nations is obviously true; and it is also true that nations which have developed the warlike arts alone have never even approximated greatness. In all complex matters, in all processes of nature and human nature, many elements are present, and many factors combine to produce a given result. Man is a very complex individual, and the more highly he is developed the more complex he becomes. A savage is mainly an animal; but the civilized and highly educated man is an animal on whose elemental nature have been superposed very highly organized mental, moral, and spiritual natures. Yet even a savage of the most primitive or warlike character has an instinctive desire for rest and softness and beauty, and loves a primitive music; and even the most highly refined and educated gentleman raises his head a little higher, and draws his breath a little deeper, when war draws near. Thus in the breast of every man are two opposing forces; one urging him to the action and excitement of war, the other to the comparative inaction and tranquillity of peace. On the side that urges war, we see hate, ambition, courage, energy, and strength; on the side that urges peace we see love, contentment, cowardice, indolence, and weakness. We see arrayed for war the forceful faults and virtues; for peace the gentle faults and virtues. Both the forceful and the gentle qualities tend to longevity in certain ways and tend to its prevention in other ways; but history clearly shows that the forceful qualities have tended more to the longevity of nations than the gentle. If ever two nations, or two tribes, have found themselves contiguous, one forceful and the other not, the forceful one has usually, if not always, obtained the mastery over the other, and therefore has outlived it. If any cow and any lion have found themselves alone together, the lion has outlived the cow.
It is true that the mere fact of being a lion has not insured long life, and that the mere fact of being a cow has not precluded it; and some warlike tribes and nations have not lived so long as tribes and nations of softer fibre. This seems to have been due, however, either to the environments in which the two have lived, or to the fact that the softer nation has had available some forces that the other did not have. The native Indians of North America were more warlike than the colonists from Europe that landed on their shores; but the Indians were armed with spears and arrows, and the colonists with guns.
Now, those guns were the product of the arts of peace; no nation that had pursued a warlike life exclusively could have produced them or invented the powder that discharged them. This fact indicates what a thousand other facts of history also indicate, that civilization and the peaceful arts contribute to the longevity of nations—not only by promoting personal comfort, and by removing causes of internal strife, and thus enabling large bodies of people to dwell together happily, but also by increasing their military power. Every nation which has achieved greatness has cultivated assiduously both the arts of peace and the arts of war. Every nation which has long maintained that greatness has done so by maintaining the policy by which she acquired it. Every nation that has attained and then lost greatness, has lost it by losing the proper balance between the military and the peaceful arts; never by exalting unduly the military, but always by neglecting them, and thereby becoming vulnerable to attack.
In other words, the history of every great nation that has declined shows three periods, the rise, the table-land of greatness, and the decline. During the rise, the military arts hold sway; on the table-land, the arts of peace and war are fairly balanced; during the decline the peaceful arts hold sway. Facilis descensus Averni. The rise is accomplished by expending energy, for which accomplishment the possession of energy is the first necessity; the height of the table-land attained represents the amount of energy expended; the length of time that the nation maintains itself upon this table-land, before starting on the inevitable descent therefrom, represents her staying power and constitutes her longevity as a great nation.
How long shall any nation stay upon the table-land? As long as she continues to adapt her life wisely to her environment; as long as she continues to be as wise as she was while climbing up; for while climbing, she had not only to exert force, she had also to guide the force with wisdom. So we see that, in the ascent, a nation has to use both force and wisdom; on the table-land, wisdom; in the decline, neither. Among the nations of antiquity one might suppose that, because of the slowness of transportation and communication, and the feebleness of weapons compared with those of modern days, much longer periods of time would be required for the rise of any nation, and also a longer period before her descent began. Yet the vast empire of Alexander lasted hardly a day after he expired, and the Grecian cities maintained their greatness but a century and a half; while Great Britain, France, and Germany have been great nations for nearly a thousand years.