When Augustus became the sovereign ruler of this vast empire, military art had reached the highest perfection it ever attained among any of the nations of antiquity. It required centuries to perfect this science, if science it may be called, and the Romans doubtless borrowed from the people whom they subdued. They learned to resist the impetuous assaults of semi-barbarous warriors, the elephants of the East, and the phalanx of the Greeks. Military discipline was carried to the severest extent by Marius, Pompey, and Caesar.
[Sidenote: The spirit of the Roman soldier.]
The Roman soldier was trained to march twenty miles a day, under a burden of eighty pounds; yea, to swim rivers, to climb mountains, to penetrate forests, and to encounter every kind of danger. He was taught that his destiny was to die in battle. He expected death. He was ready to die. Death was his duty, and his glory. He enlisted in the armies with little hope of revisiting his home. He crossed seas and deserts and forests with the idea of spending his life in the service of his country. His pay was only a denarius daily, equal to about sixteen cents of our money. Marriage was discouraged or forbidden. He belonged to the state, and the state was exacting and hard. He was reduced to abject obedience, yet he held in his hand the destinies of the empire. And however insignificant was the legionary as a man, he gained importance from the great body with which he was identified. He was the servant and the master of the state. He had an intense esprit de corps. He was bound up in the glory of his legion. Both religion and honor bound him to his standards. The golden eagle which glittered in his front was the object of his fondest devotion. Nor was it possible to escape the penalty of cowardice or treachery, or disobedience. He could be chastised with blows by his centurion; his general could doom him to death. Never was the severity of military discipline relaxed. Military exercises were incessant, in winter as in summer. In the midst of peace the Roman troops were familiarized with the practice of war.
[Sidenote: Military genius of the Romans.]
[Sidenote: The perfection of military art.]
It was the spirit which animated the Roman legions, and the discipline to which they were inured, which gave them their irresistible strength. When we remember that they had not our fire-arms, we are surprised at their efficiency, especially in taking strongly fortified cities. Jerusalem was defended by a triple wall, and the most elaborate fortifications, and twenty-four thousand soldiers, beside the aid received from the citizens; and yet it fell in little more than four months before an army of eighty thousand under Titus. How great the science to reduce a place of such strength, in so short a time, without the aid of other artillery than the ancient catapult and battering-ram! Whether the military science of the Romans was superior or inferior to our own, no one can question that it was carried to utmost perfection before the invention of gunpowder. We are only superior in the application of this great invention, especially in artillery. There can be no doubt that a Roman army was superior to a feudal army in the brightest days of chivalry. The world has produced no generals superior to Caesar, Pompey, Sulla, and Marius. No armies ever won greater victories over superior numbers than the Roman, and no armies of their size, ever retained in submission so great an empire, and for so long a time. At no period in the history of the empire were the armies so large as those sustained by France in time of peace. Two hundred thousand legionaries, and as many more auxiliaries, controlled diverse nations and powerful monarchies. The single province of Syria once boasted of a military force equal in the number of soldiers to that wielded by Tiberius. Twenty-five legions made the conquest of the world, and retained that conquest for five hundred years. The self-sustained energy of Caesar in Gaul puts to the blush the efforts of all modern generals, except Frederic II., Marlborough, Napoleon, Wellington, Grant, Sherman, and a few other great geniuses which a warlike age developed; nor is there a better text-book on the art of war than that furnished by Caesar himself in his Commentaries. And the great victories of the Romans over barbarians, over Gauls, over Carthaginians, over Greeks, over Syrians, over Persians, were not the result of a short-lived enthusiasm, like those of Attila and Tamerlane, but extended over a thousand years. The Romans were essentially military in all their tastes and habits. Luxurious senators and nobles showed the greatest courage and skill in the most difficult campaigns. Antony, Caesar, Pompey, and Lucullus were, at home, enervated and luxurious, but, at the head of the legions, were capable of any privation and fatigue. The Roman legion was a most perfect organization, a great mechanical force, and could sustain furious attacks after vigor, patriotism, and public spirit had fled. For three hundred years a vast empire was sustained by mechanism alone.
[Sidenote: The Roman Legion.]
[Sidenote: Its composition.]
[Sidenote: The infantry the strength of the legion.]
[Sidenote: Its armor.]