The glorious battle of Leipzig effected a great change in the conduct of Gustavus Adolphus, as well as in the opinion which both friends and foes entertained of him. Successfully had he confronted the greatest general of the age, and had matched the strength of his tactics and the courage of his Swedes against the elite of the imperial army, the most experienced troops in Europe. From this moment he felt a firm confidence in his own powers -- self-confidence has always been the parent of great actions. In all his subsequent operations more boldness and decision are observable; greater determination, even amidst the most unfavourable circumstances, a more lofty tone towards his adversaries, a more dignified bearing towards his allies, and even in his clemency, something of the forbearance of a conqueror.
His natural courage was farther heightened by the pious ardour of his imagination. He saw in his own cause that of heaven, and in the defeat of Tilly beheld the decisive interference of Providence against his enemies, and in himself the instrument of divine vengeance.
Leaving his crown and his country far behind, he advanced on the wings of victory into the heart of Germany, which for centuries had seen no foreign conqueror within its bosom. The warlike spirit of its inhabitants, the vigilance of its numerous princes, the artful confederation of its states, the number of its strong castles, its many and broad rivers, had long restrained the ambition of its neighbours;and frequently as its extensive frontier had been attacked, its interior had been free from hostile invasion. The Empire had hitherto enjoyed the equivocal privilege of being its own enemy, though invincible from without. Even now, it was merely the disunion of its members, and the intolerance of religious zeal, that paved the way for the Swedish invader. The bond of union between the states, which alone had rendered the Empire invincible, was now dissolved;and Gustavus derived from Germany itself the power by which he subdued it.
With as much courage as prudence, he availed himself of all that the favourable moment afforded; and equally at home in the cabinet and the field, he tore asunder the web of the artful policy, with as much ease, as he shattered walls with the thunder of his cannon.
Uninterruptedly he pursued his conquests from one end of Germany to the other, without breaking the line of posts which commanded a secure retreat at any moment; and whether on the banks of the Rhine, or at the mouth of the Lech, alike maintaining his communication with his hereditary dominions.
The consternation of the Emperor and the League at Tilly's defeat at Leipzig, was scarcely greater than the surprise and embarrassment of the allies of the King of Sweden at his unexpected success. It was beyond both their expectations and their wishes. Annihilated in a moment was that formidable army which, while it checked his progress and set bounds to his ambition, rendered him in some measure dependent on themselves. He now stood in the heart of Germany, alone, without a rival or without an adversary who was a match for him.
Nothing could stop his progress, or check his pretensions, if the intoxication of success should tempt him to abuse his victory.
If formerly they had dreaded the Emperor's irresistible power, there was no less cause now to fear every thing for the Empire, from the violence of a foreign conqueror, and for the Catholic Church, from the religious zeal of a Protestant king. The distrust and jealousy of some of the combined powers, which a stronger fear of the Emperor had for a time repressed, now revived; and scarcely had Gustavus Adolphus merited, by his courage and success, their confidence, when they began covertly to circumvent all his plans. Through a continual struggle with the arts of enemies, and the distrust of his own allies, must his victories henceforth be won; yet resolution, penetration, and prudence made their way through all impediments.
But while his success excited the jealousy of his more powerful allies, France and Saxony, it gave courage to the weaker, and emboldened them openly to declare their sentiments and join his party.
Those who could neither vie with Gustavus Adolphus in importance, nor suffer from his ambition, expected the more from the magnanimity of their powerful ally, who enriched them with the spoils of their enemies, and protected them against the oppression of their stronger neighbours.
His strength covered their weakness, and, inconsiderable in themselves, they acquired weight and influence from their union with the Swedish hero.
This was the case with most of the free cities, and particularly with the weaker Protestant states. It was these that introduced the king into the heart of Germany; these covered his rear, supplied his troops with necessaries, received them into their fortresses, while they exposed their own lives in his battles. His prudent regard to their national pride, his popular deportment, some brilliant acts of justice, and his respect for the laws, were so many ties by which he bound the German Protestants to his cause; while the crying atrocities of the Imperialists, the Spaniards, and the troops of Lorraine, powerfully contributed to set his own conduct and that of his army in a favourable light.
