Of all the towns in Brabant Antwerp was the most important, as well from, its wealth, its population, and its military force, as by its position on the mouth of the Scheldt. This great and populous town, which at this date contained more than eighty thousand inhabitants, was one of the most active members of the national league, and had in the course of the war distinguished itself above all the towns of Belgium by an untamable spirit of liberty. As it fostered within its bosom all the three Christian churches, and owed much of its prosperity to this unrestricted religious liberty, it had the more cause to dread the Spanish rule, which threatened to abolish this toleration, and by the terror of the Inquisition to drive all the Protestant merchants from its markets. Moreover it had had but too terrible experience of the brutality of the Spanish garrisons, and it was quite evident that if it once more suffered this insupportable yoke to be imposed upon it it would never again during the whole course of the war be able to throw it off.
But powerful as were the motives which stimulated Antwerp to resistance, equally strong were the reasons which determined the Spanish general to make himself master of the place at any cost. On the possession of this town depended in a great measure that of the whole province of Brabant, which by this channel chiefly derived its supplies of corn from Zealand, while the capture of this place would secure to the victor the command of the Scheldt. It would also deprive the league of Brabant, which held its meetings in the town, of its principal support; the whole faction of its dangerous influence, of its example, its counsels, and its money, while the treasures of its inhabitants would open plentiful supplies for the military exigencies of the king. Its fall would sooner or later necessarily draw after it that of all Brabant, and the preponderance of power in that quarter would decide the whole dispute in favor of the king. Determined by these grave considerations, the Duke of Parma drew his forces together in July, 1584, and advanced from his position at Dornick to the neighborhood of Antwerp, with the intention of investing it.
But both the natural position and fortifications of the town appeared to defy attacks. Surrounded on the side of Brabant with insurmountable works and moats, and towards Flanders covered by the broad and rapid stream of the Scheldt, it could not be carried by storm; and to blockade a town of such extent seemed to require a land force three times larger than that which the duke had, and moreover a fleet, of which he was utterly destitute. Not only did the river yield the town all necessary supplies from Ghent, it also opened an easy communication with the bordering province of Zealand. For, as the tide of the North Sea extends far up the Scheldt, and ebbs and flows regularly, Antwerp enjoys the peculiar advantage that the same tide flows past it at different times in two opposite directions. Besides, the adjacent towns of Brussels, Malines, Ghent, Dendermonde, and others, were all at this time in the hands of the league, and could aid the place from the land side also. To blockade, therefore, the town by land, and to cut off its communication with Flanders and Brabant, required two different armies, one on each bank of the river. A sufficient fleet was likewise needed to guard the passage of the Scheldt, and to prevent all attempts at relief, which would most certainly be made from Zealand. But by the war which he had still to carry on in other quarters, and by the numerous garrisons which he was obliged to leave in the towns and fortified places, the army of the duke was reduced to ten thousand infantry and seventeen hundred horse, a force very inadequate for an undertaking of such magnitude. Moreover, these troops were deficient in the most necessary supplies, and the long arrears of pay had excited them to subdued murmurs, which hourly threatened to break out into open mutiny. If, notwithstanding these difficulties, he should still attempt the seige, there would be much occasion to fear from the strongholds of the enemy, which were left in the rear, and from which it would be easy, by vigorous sallies, to annoy an army distributed over so many places, and to expose it to want by cutting off its supplies.
All these considerations were brought forward by the council of war, before which the Duke of Parrna now laid his scheme. However great the confidence which they placed in themselves, and in the proved abilities of such a leader, nevertheless the most experienced generals did not disguise their despair of a fortunate result. Two only were exceptions, Capizucchi and Mondragone, whose ardent courage placed them above all apprehensions; the rest concurred in dissuading the duke from attempting so hazardous an enterprise, by which they ran the risk of forfeiting the fruit of all their former victories and tarnishing the glory they had already earned.
But objections, which he had already made to himself and refuted, could not shake the Duke of Parma in his purpose. Not in ignorance of its inseparable dangers, not from thoughtless overvaluing his forces had he taken this bold resolve. But that instinctive genius which leads great men by paths which inferior minds either never enter upon or never finish, raised him above the influence of the doubts which a cold and narrow prudence would oppose to his views; and, without being able to convince his generals, he felt the correctness of his calculations in a conviction indistinct, indeed, but not on that account less indubitable. A succession of fortunate results had raised his confidence, and the sight of his army, unequalled in Europe for discipline, experience, and valor, and commanded by a chosen body of the most distinguished officers, did not permit him to entertain fear for a moment. To those who objected to the small number of his troops, he answered, that however long the pike, it is only the point that kills; and that in military enterprise, the moving power was of more importance than the mass to be moved. He was aware, indeed, of the discontent of his troops, but he knew also their obedience; and he thought, moreover, that the best means to stifle their murmurs was by keeping them employed in some important undertaking, by stimulating their desire of glory by the splendor of the enterprise, and their rapacity by hopes of the rich booty which the capture of so wealthy a town would hold out.
In the plan which he now formed for the conduct of the siege he endeavored to meet all these difficulties. Famine was the only instrument by which he could hope to subdue the town; but effectually to use this formidable weapon, it would be expedient to cut off all its land and water communications. With this view, the first object was to stop, or at least to impede, the arrival of supplies from Zealand. It was, therefore, requisite not only to carry all the outworks, which the people of Antwerp had built on both shores of the Scheldt for the protection of their shipping; but also, wherever feasible, to throw up new batteries which should command the whole course of the river; and to prevent the place from drawing supplies from the land side, while efforts were being made to intercept their transmission by sea, all the adjacent towns of Brabant and Flanders were comprehended in the plan of the siege, and the fall of Antwerp was based on the destruction of all those places. A bold and, considering the duke's scanty force, an almost extravagant project, which was, however, justified by the genius of its author, and crowned by fortune with a brilliant result.
As, however, time was required to accomplish a plan of this magnitude, the Prince of Parma was content, for the present, with the erection of numerous forts on the canals and rivers which connected Antwerp with Dendermonde, Ghent, Malines, Brussels, and other places. Spanish garrisons were quartered in the vicinity, and almost at the very gates of those towns, which laid waste the open country, and by their incursions kept the surrounding territory in alarm. Thus, round Ghent alone were encamped about three thousand men, and proportionate numbers round the other towns. In this way, and by means of the secret understanding which he maintained with the Roman Catholic inhabitants of those towns, the duke hoped, without weakening his own forces, gradually to exhaust their strength, and by the harassing operations of a petty but incessant warfare, even without any formni siege, to reduce them at last to capitulate.