The highest military office in the Netherlands was that of captain-general or supreme commander.  This quality was from earliest times united to that of stadholder, who stood, as his title implied, in the place of the reigning sovereign, whether count, duke, king, or emperor.  After the foundation of the Republic this dynastic form, like many others, remained, and thus Prince Maurice was at first only captain-general of Holland and Zeeland, and subsequently of Gelderland, Utrecht, and Overyssel, after he had been appointed stadholder of those three provinces in 1590 on the death of Count Nieuwenaar.  However much in reality he was general-in-chief of the army, he never in all his life held the appointment of captain-general of the Union.

To obtain a captain’s commission in the army, it was necessary to have served four years, while three years’ service was the necessary preliminary to the post of lieutenant or ensign.  Three candidates were presented by the province for each office, from whom the stadholder appointed one.—­The commissions, except those of the highest commanders, were made out in the name of the States-General, by advice and consent of the council of state.  The oath of allegiance, exacted from soldiers as well as officers; mentioned the name of the particular province to which they belonged, as well as that of the States-Generals.  It thus appears that, especially after Maurice’s first and successful campaigns; the supreme authority over the army really belonged to the States-General, and that the powers of the state-council in this regard fell, in the course of four years, more and more into the back-ground, and at last disappeared almost entirely.  During the active period of the war, however; the effect of this revolution was in fact rather a greater concentration of military power than its dispersion, for the States-General meant simply the province of Holland.  Holland was the republic.

The organisation of the infantry was very simple.  The tactical unit was the company.  A temporary combination of several companies—­made a regiment, commanded by a colonel or lieutenant-colonel, but for such regiments there was no regular organisation.  Sometimes six or seven companies were thus combined, sometimes three times that number, but the strength of a force, however large, was always estimated by the number of companies, not of regiments.

The normal strength of an infantry company, at the beginning of Maurice’s career, may be stated at one hundred and thirteen, commanded by one captain, one lieutenant, one ensign, and by the usual non-commissioned officers.  Each company was composed of musketeers, harquebusseers, pikemen, halberdeers, and buckler-men.  Long after, portable firearms had come into use, the greater portion of foot soldiers continued to be armed with pikes, until the introduction of the fixed bayonet enabled the musketeer to do likewise the duty of pikeman.  Maurice was among the first to appreciate the advantage of portable firearms, and he accordingly increased the proportion of soldiers armed with the musket in his companies.  In a company of a hundred and thirteen, including officers, he had sixty-four armed with firelocks to thirty carrying pikes and halberds.  As before his time the proportion between the arms had been nearly even; he thus more than doubled the number of firearms.