who felt they had to look elsewhere for allies.
It is easy to see why the possessions in the New World were an area of vital importance to Spain. For well over a century, they provided that regular addition to Spain’s wealth, and thus to its military power, without which the Habsburg effort could not have been so extensively maintained. Even when the English and Dutch attacks upon the Hispano-Portuguese colonial empire necessitated an ever-increasing expenditure on fleets and fortifications overseas, the direct and indirect gains to the Spanish crown from those territories remained considerable. To abandon such assets was unthinkable.
This left for consideration the Habsburg possessions in Italy and those in Flanders. Of the two, a withdrawal from Italy had less to recommend itself. In the first half of the sixteenth century, the French would have filled the Great Power vacuum there, and used the wealth of Italy for their own purposes – and to Habsburg detriment. In the second half of that century Italy was, quite literally, the outer bulwark of Spain’s own security in the face of Ottoman expansion westward. Quite apart from the blow to Spanish prestige and to the Christian religion which would have accompanied a Turkish assault upon Sicily, Naples, and Rome, the loss of this bulwark would have been a grave strategical setback. Spain would then have had to pour more and more money into coastal fortifications and galley fleets, which in any case were consuming the greater part of the arms budget in the early decades of Philip II’s reign. So it made good military sense to commit these existing forces to the active defence of the central Mediterranean, for that kept the Turkish enemy at a distance; and it had the further advantage that the costs of such campaigning were shared by the Habsburg possessions in Italy, by the papacy, and, on occasions, by Venice. Withdrawal from this front brought no advantages and many potential dangers.
By elimination, then, the Netherlands was the only area in which Habsburg losses might be cut; and, after all, the costs of the Army of Flanders in the ‘Eighty Years War’ against the Dutch were, thanks to the difficulties of the terrain and the advances in fortifications,37 quite stupendous and greatly exceeded those on any other front. Even at the height of the Thirty Years War, five or six times as much money was allocated to the Flanders garrison as to forces in Germany. ‘The war in the Netherlands’, observed one Spanish councillor, ‘has been the total ruin of this monarchy.’ In fact, between 1566 and 1654 Spain sent at least 218 million ducats to the Military Treasury in the Netherlands, considerably more than the sum total (121 million ducats) of the crown’s receipts from the Indies.38 Strategically, too, Flanders was much more difficult to defend: the sea route was often at the mercy of the French, the English, and the Dutch – as was most plainly shown when the Dutch admiral Tromp smashed a Spanish fleet carrying troop reinforcements in 1639 – but the ‘Spanish Road’ from Lombardy via the Swiss valleys or Savoy and Franche-Comté up the eastern frontiers of France to the lower Rhine also contained a number of very vulnerable choke points.39 Was it really worthwhile to keep attempting to control a couple of million recalcitrant Netherlanders at the far end of an extensive line of communications, and at such horrendous cost? Why not, as the representatives of the overtaxed Cortes of Castile slyly put it, let the rebels rot in their heresy? Divine punishment was assured them, and Spain would not have to carry the burden any longer.40
The reasons given against an imperial retreat from that theatre would not have convinced those complaining of the waste of resources, but they have a certain plausibility. In the first place, if Spain no longer possessed Flanders, it would fall either to France or to the United Provinces, thereby enhancing the power and prestige of one of those inveterate Habsburg enemies; the very idea was repellent to the directors of Spanish policy, to whom ‘reputation’ mattered more than anything else. Secondly, there was the argument advanced by Philip IV and his advisers that a confrontation in that region at least took hostile forces away from more sensitive places: ‘Although the war which we have fought in the Netherlands has exhausted our treasury and forced us into the debts that we have incurred, it has also diverted our enemies in those parts so that, had we not done so, it is certain that we would have had war in Spain or somewhere nearer.’41 Finally, there was the ‘domino theory’ – if the Netherlands were lost, so also would be the Habsburg cause in Germany, smaller possessions like Franche-Comté, perhaps even Italy. These were, of course, hypothetical arguments; but what is interesting is that the statesmen in Madrid, and their army commanders in Brussels, perceived an interconnected strategical whole, which would be shattered if any one of the parts fell:
The first and greatest dangers [so the reasoning went in the critical year of 1635] are those that threaten Lombardy, the Netherlands and Germany. A defeat in any of these three is fatal for this Monarchy, so much so that if the defeat in those parts is a great one, the rest of the monarchy will collapse; for Germany will be followed by Italy and the Netherlands, and the Netherlands will be followed by America; and Lombardy will be followed by Naples and Sicily, without the possibility of being able to defend either.42
In accepting this logic, the Spanish crown had committed itself to a widespread war of attrition which would last until victory was secured, or a compromise peace was effected, or the entire system was exhausted.
Perhaps it is sufficient to show that the sheer costs of continuous war and the determination not to abandon any of the four major fronts were bound to undermine Spanish-imperial ambitions in any case. Yet the evidence suggests that there was a third, related cause: namely, that the Spanish government in particular failed to mobilize available resources in the most efficient way and, by acts of economic folly, helped to erode its own power.
Although foreigners frequently regarded the empire of Charles V or that of Philip II as monolithic and disciplined, it was in fact a congeries of territories, each of which possessed its own privileges and was proud of its own distinctiveness.43 There was no central administration (let alone legislature or judiciary), and the only real connecting link was the monarch himself. The absence of such institutions which might have encouraged a sense of unity, and the fact that the ruler might never visit the country, made it difficult for the king to raise funds in one part of his dominions in order to fight in another. The taxpayers of Sicily and Naples would willingly pay for the construction of a fleet to resist the Turks, but they complained bitterly at the idea of financing the Spanish struggle in the Netherlands; the Portuguese saw the sense of supporting the defence of the New World, but had no enthusiasm for German wars. This intense localism had contributed to, and was reflected by, jealously held fiscal rights. In Sicily, for example, the estates resisted early Habsburg efforts to increase taxation and had risen against the Spanish viceroy in 1516 and 1517; being poor, anarchical, and possessing a parliament, Sicily was highly unlikely to provide much for the general defence of Habsburg interests.44 In the kingdom of Naples and in the newer acquisition of Milan, there were fewer legislative obstacles to Spanish administrators under pressure from Madrid to find fresh funds. Both therefore could provide considerable financial aid during Charles V’s reign; but in practice the struggle to retain Milan, and the wars against the Turks, meant that this flow was usually reversed. To hold its Mediterranean ‘bulwark’, Spain had to send millions of ducats to Italy, to add to those raised there. During the Thirty Years War the pattern was reversed again, and Italian taxes helped to pay for the wars in Germany and the Netherlands; but, taking this period 1519–1659 as a whole, it is hard to believe that the Habsburg possessions in Italy contributed substantially more – if at all – to the common fund than they themselves took out for their own defence.45
The Netherlands became, of course, an even greater drain upon general imperial revenues. In the early part of Charles V’s reign, the States General provided
