One fortunate circumstance for Christendom is, that at the period when the crusades, which had for their object the defence of Europe, drew near to their end, the Turks began to lose some part of that military power which they had displayed in their contests with the Christian nations. The Ottomans had at first been, as we have already said, the only nation that kept on foot a regular standing army, which gave it a vast superiority over powers that it was desirous of subduing. In the sixteenth century, most of the great states of Europe had likewise armies which they could at any time bring against their enemies. Discipline and military tactics had made great progress in Christendom; artillery and marine became more perfect in the West every day, whilst the Turks, in all that concerns the art of war, or that of navigation, gathered no advantage from either the lessons of experience, or from the knowledge to which time and circumstances had given birth among their neighbours. We ought to add, that the spirit of superstition and intolerance which the Turks associated with their wars, was very injurious to the preservation and extent of their conquests. When they took possession of a province, they insisted upon making their laws, their customs, and their worship paramount. They must change everything, they must destroy everything, in the country in which they wished to establish themselves; they must either exterminate the population, or reduce it to the impossibility of disturbing a foreign domination. Thus it may be remarked, that, although several times masters of Hungary, they retired from it after every campaign, and were never able, amidst all their victories, to found a colony or make any durable establishment there. The Ottoman population which had sufficed for occupying and enslaving the Greek empire, could not people and preserve more distant countries. It was this, above everything, which saved Germany and Italy from the invasion of the Turks. The Ottomans might, perhaps, have conquered the world if they had been able to impose their manners upon it, or furnish it with inhabitants.