The one nation that gained in this war was that which used the sea in peace to earn its wealth, and ruled it in war by the extent of its navy, by the number of its subjects who lived on the sea or by the sea, and by its numerous bases of operations scattered over the globe. Yet it must be observed that these bases themselves would have lost their value if their communications remained obstructed. Therefore the French lost Louisburg, Martinique, Pondicherry; so England herself lost Minorca. The service between the bases and the mobile force, between the ports and the fleets, is mutual.[47] In this respect the navy is essentially a light corps; it keeps open the communications between its own ports, it obstructs those of the enemy; but it sweeps the sea for the service of the land, it controls the desert that man may live and thrive on the habitable globe. 18. EIGHTEENTH CENTURY FORMALISM IN NAVAL TACTICS[48] Tourville,[49] though a brilliant seaman, thus not only typified an era of transition, with which he was contemporary, but fore-shadowed the period of merely formal naval warfare, precise, methodical, and unenterprising, emasculated of military virility, although not of mere animal courage. He left to his successors the legacy of a great name, but also unfortunately that of a defective professional tradition. The splendid days of the French Navy under Louis XIV passed away with him,—he died in 1701; but during the long period of naval lethargy on the part of the state, which followed, the French naval officers, as a class, never wholly lost sight of professional ideals. They proved themselves, on the rare occasions that offered, before 1715 and during the wars of Hawke and Rodney, not only gallant seamen after the pattern of Tourville, but also exceedingly capable tacticians, upon a system good as far as it went, but defective on Tourville’s express lines, in aiming rather at exact dispositions and defensive security than at the thorough-going initiative and persistence which confounds and destroys the enemy. “War,” to use Napoleon’s phrase, “was to be waged without running risks.” The sword was drawn, but the scabbard was kept ever open for its retreat.