And now, at last, France seemed to have attained the great object of its policy, that of depriving the Emperor of the support of the League, and of his Protestant allies, and of dictating to him, sword in hand, the conditions of peace. Of all his once formidable power, an army, not exceeding 12,000, was all that remained to him; and this force he was driven to the necessity of entrusting to the command of a Calvinist, the Hessian deserter Melander, as the casualties of war had stripped him of his best generals. But as this war had been remarkable for the sudden changes of fortune it displayed; and as every calculation of state policy had been frequently baffled by some unforeseen event, in this case also the issue disappointed expectation; and after a brief crisis, the fallen power of Austria rose again to a formidable strength. The jealousy which France entertained of Sweden, prevented it from permitting the total ruin of the Emperor, or allowing the Swedes to obtain such a preponderance in Germany, as might have been destructive to France herself. Accordingly, the French minister declined to take advantage of the distresses of Austria; and the army of Turenne, separating from that of Wrangel, retired to the frontiers of the Netherlands. Wrangel, indeed, after moving from Suabia into Franconia, taking Schweinfurt, and incorporating the imperial garrison of that place with his own army, attempted to make his way into Bohemia, and laid siege to Egra, the key of that kingdom. To relieve this fortress, the Emperor put his last army in motion, and placed himself at its head. But obliged to take a long circuit, in order to spare the lands of Von Schlick, the president of the council of war, he protracted his march; and on his arrival, Egra was already taken. Both armies were now in sight of each other; and a decisive battle was momentarily expected, as both were suffering from want, and the two camps were only separated from each other by the space of the entrenchments. But the Imperialists, although superior in numbers, contented themselves with keeping close to the enemy, and harassing them by skirmishes, by fatiguing marches and famine, until the negociations which had been opened with Bavaria were brought to a bearing.