For this reason, every military nation at the outset of war desires to be able to assume the offensive; and only refrains from the offensive from motives of prudence or because, in a particular case, the distance between the adversaries is so great, that the lack of bases would be of greater weight than the advantage of the initiative--or because the situations of the contending parties would be such that the side accepting the defensive rôle and staying near home, might be able to carry on aggressive attacks better than could the other. An illustration of a mistake in taking the offensive, and the wisdom of the other side in accepting the defensive, may be seen in Napoleon's expedition against Russia; for the Russians were able to repel his attack completely, and then to assume a terrible offensive against his retreating, disorganized, and starving army. Another illustration was the expedition made by a weak Spanish fleet under Cervera to the Caribbean in 1898. Another illustration was that of the Russians in the war of 1904; the practical disadvantages under which the Russian fleet operated at Tsushima were too great to be balanced by the advantage of the attack; especially as the situation was such that the Japanese were able to foretell with enough accuracy for practical purposes the place where the attack would be delivered, and the time. Operations on the sea, like operations on the land, consist in opposing force to force, in making thrusts and making parries. If two men or two ships contend in a duel, or if two parallel columns--say of ten ships each--are drawn up abreast each other, the result will depend mainly on the hitting and enduring powers of the combatants; the conditions of the "stand-up fight" are realized, and there is little opportunity for strategy to exert itself. But if any country--say the United States--finds herself involved in war with--say a powerful naval Power or Powers of Europe, and the realization of the fact comes with the suddenness that characterized the coming of war in August, 1914, and we hear the same day that a fleet of battleships, battle cruisers, destroyers, submarines, aircraft, and auxiliaries has left the enemy's country, followed by a fleet of transports carrying troops--there will be immediate need for strategy of the most skilful kind; and this need will continue until either the United States or her enemy has been made to acknowledge herself beaten, and to sue for peace. As such a war will be mainly naval, and as naval wars are characterized by great concentration of force, by each side getting practically all its naval force into the contest, by each side staking its all on the issue of perhaps a single battle (as the Russians and Japanese did at Tsushima) one fleet or the other will be practically annihilated, and its country will be exposed naked to the enemy.