Pursuing Frederick William's system of progressive preparation, Prussia continued her prosperous course till William I defeated Austria, then France, and founded the German Empire.

This does not mean that the only result of developing national efficiency to its highest point is to secure success in war--in fact, we know that it is not.
But it does mean that the same quality--efficiency--which tends to prosperity in peace tends also to victory in war.
Preparing for war was a simple thing in the olden days compared with preparing now, for the reason that the implements of war are much more numerous and complicated than they used to be, especially in navies.

A navy is not ready unless all preparations and plans have been made, tested, and kept up to date, to insure that all of the vessels of every kind and all the shore stations will be in material condition, fully equipped and manned by a sufficient and efficient personnel of officers and crews, in time to meet the enemy on advantageous terms, and unless the central authority has already decided what it will do, when any probable emergency shall arise.

This was the condition of the German army in 1870.
This was also the condition of the British navy, when war broke out in August, 1914; the British navy was ready; and therefore it was able to assume command of the sea at once, drive its enemy's commerce from the ocean, and imprison its fleets in sheltered ports.
In all countries the peace establishment of the army and navy is smaller than the war establishment, for reasons of economy, upon the assumption that there will be enough time after war is declared to get on a war basis before the enemy can strike.

But since 1870, all the military nations have realized that the vital struggle of a war takes place _before_ a shot is fired; that _the factors that decide which nation shall be the victor and which the vanquished are determined before the war begins_; that they are simply "functions" of preparedness.