Before turning our attention to the foreign wars of Louis XIV, mention must be made of another blot on his reign. It was Louis XIV who renewed the persecution of the Protestants. He was moved alike by the absolutist's desire to secure complete uniformity throughout France and by the penitent's religious fervor to make amends for earlier scandals of his private life. For a time he contented himself with so-called dragonnades--quartering licentious soldiers upon the Huguenots--but at length in 1685 he formally revoked the Edict of Nantes. France, which for almost a century had led Europe in the principle and practice of religious toleration, was henceforth reactionary. Huguenots were still granted liberty of conscience, but were denied freedom of worship and deprived of all civil rights in the kingdom. The immediate effect of this arbitrary and mistaken action was the emigration of large numbers of industrious and valuable citizens, who added materially to the political and economic life of England, Holland, and Prussia, the chief Protestant foes of France. EXTENSION OF FRENCH FRONTIERS Louis XIV was not a soldier himself. He never appeared in military uniform or rode at the head of his troops. What he lacked, however, in personal genius as a great military commander, he compensated for in a genuine fondness for war and in remarkable personal gifts of diplomacy. He was one of the greatest diplomats of his age, and, as we have seen, he possessed large loyal armies and able generals that he could employ in prosecuting the traditional foreign policy of France. [Sidenote: Traditional Foreign Policy of France] This foreign policy, which had been pursued by Francis I, Henry II, Henry IV, Richelieu, and Mazarin, had for its goal the humiliation of the powerful Habsburgs, whether of Austria or of Spain. Although France had gained materially at their expense in the treaties of Westphalia and of the Pyrenees, much remained to be done by Louis XIV. When the Grand Monarch assumed direct control of affairs in 1661, the Spanish Habsburgs still ruled not only the peninsular kingdom south of France, but the Belgian Netherlands to the north, Franche Comte to the east, and Milan in northern Italy, while their kinsmen of Austria maintained shadowy imperial government over the rich Rhenish provinces on the northeastern boundary of France. France was still almost completely encircled by Habsburg holdings. [Sidebar: Doctrine of "Natural Boundaries"] To justify his subsequent aggressions, Louis XIV propounded the doctrine of "natural boundaries." Every country, he maintained, should secure such frontiers as nature had obviously provided--mountains, lakes, or rivers; and France was naturally provided with the frontiers of ancient Gaul--the Pyrenees, the Alps, the Rhine River, and the Ocean. Any foreign monarch or state that claimed power within such frontiers was an interloper and should be expelled. [Sidenote: The Wars of Louis XIV]