A curious exemplification of this tendency to slight the bearing of maritime power upon events may be drawn from two writers of that English nation which more than any other has owed its greatness to the sea. "Twice," says Arnold in his History of Rome, "Has there been witnessed the struggle of the highest individual genius against the resources and institutions of a great nation, and in both cases the nation was victorious. For seventeen years Hannibal strove against Rome, for sixteen years Napoleon strove against England; the efforts of the first ended in Zama, those of the second in Waterloo." Sir Edward Creasy, quoting this, adds: "One point, however, of the similitude between the two wars has scarcely been adequately dwelt on; that is, the remarkable parallel between the Roman general who finally defeated the great Carthaginian, and the English general who gave the last deadly overthrow to the French emperor. Scipio and Wellington both held for many years commands of high importance, but distant from the main theatres of warfare. The same country was the scene of the principal military career of each. It was in Spain that Scipio, like Wellington, successively encountered and overthrew nearly all the subordinate generals of the enemy before being opposed to the chief champion and conqueror himself. Both Scipio and Wellington restored their countrymen's confidence in arms when shaken by a series of reverses, and each of them closed a long and perilous war by a complete and overwhelming defeat of the chosen leader and the chosen veterans of the foe." Neither of these Englishmen mentions the yet more striking coincidence, that in both cases the mastery of the sea rested with the victor. The Roman control of the water forced Hannibal to that long, perilous march through Gaul in which more than half his veteran troops wasted away; it enabled the elder Scipio, while sending his army from the Rhone on to Spain, to intercept Hannibal's communications, to return in person and face the invader at the Trebia. Throughout the war the legions passed by water, unmolested and unwearied, between Spain, which was Hannibal's base, and Italy, while the issue of the decisive battle of the Metaurus, hinging as it did upon the interior position of the Roman armies with reference to the forces of Hasdrubal and Hannibal, was ultimately due to the fact that the younger brother could not bring his succoring reinforcements by sea, but only by the land route through Gaul. Hence at the critical moment the two Carthaginian armies were separated by the length of Italy, and one was destroyed by the combined action of the Roman generals.