In olden times, before the invention of long-range arms of precision, warfare was decided mainly by individual bravery and strength. In the modern world victory has inclined more and more to that side which carefully prepares beforehand to throw a force, superior alike in armament and numbers, against the vitals of its enemy. Assuming that the combatants are fairly equal in physical qualities--and the spread of liberty has undoubtedly lessened the great differences that once were observable in this respect among European peoples--war becomes largely an affair of preliminary organisation. That is to say, it is now a matter of brain rather than muscle. Writers of the school of Carlyle may protest that all modern warfare is tame when compared with the splendidly rampant animalism of the Homeric fights. In the interests of Humanity it is to be hoped that the change will go on until war becomes wholly scientific and utterly unattractive. Meanwhile, the soldier-caste, the politician, and the tax-payer have to face the fact that the fortunes of war are very largely decided by humdrum costly preparations in time of peace. The last chapter set forth the causes that led to war in 1870. That event found Germany fully prepared. The lessons of the campaign of 1866 had not been lost upon the Prussian General Staff. The artillery was improved alike in _matériel_ and in drill-tactics, Napoleon I.'s plan of bringing massed batteries to bear on decisive points being developed with Prussian thoroughness. The cavalry learnt to scout effectively and act as "the eyes and ears of an army," as well as to charge in brigades on a wavering foe. Universal military service had been compulsory in Prussia since 1813; but the organisation of territorial army corps now received fuller development, so that each part of Prussia, including, too, most of the North German Confederation, had its own small army complete in all arms, and reinforced from the Reserve, and, at need, from the Landwehr[35]. By virtue of the military conventions of 1866, the other German States adopted a similar system, save that while Prussians served for three years (with few exceptions in the case of successful examinees), the South Germans served with the colours for a shorter period. Those conventions also secured uniformity, or harmony, in the railway arrangements for the transport of troops. [Footnote 35: By the Prussian law of November 9, 1867, soldiers had to serve three years with the colours, four in the reserve, and five in the Landwehr. Three new army corps (9th, 10th, and 11th) were formed in the newly annexed or confederated lands, Hanover, Hesse-Cassel, Saxony, etc. (Maurice, _The Franco-German War_, 1900).]