The spirit of enterprise had deserted Mack as soon as actual hostilities commenced. With the usual fault of Austrian generals, he had extended his position too far, and embraced too many points of defence, rendering his communications difficult, and offering facilities for Buonaparte's favourite tactics, of attacking and destroying in detail the divisions opposed to him. The defeat at Guntzburg induced Mack at length to concentrate his army around Ulm; but Bavaria and Suabia were now fully in possession of the French and Bavarians; and the Austrian General Spangenberg, surrounded in Memmingen, was compelled to lay down his arms with five thousand men.[131] The French had crossed the Rhine about the 26th September; it was now the 13th October, and they could scarcely be said to have begun the campaign, when they had made, on various points, not fewer than twenty thousand prisoners. Napoleon, however, expected that resistance from Mack's despair, which no other motive had yet engaged him to offer; and he announced to his army the prospect of a general action. He called on his soldiers to revenge themselves on the Austrians for the loss of the plunder of London, of which, but for this new continental war, they would have been already in possession. He pointed out to them, that, as at Marengo, he had cut the enemy off from his reserves and resources, and he summoned them to signalise Ulm by a battle, which should be yet more decisive.[132] No general action, however, took place, though several sanguinary affairs of a partial nature were fought, and terminated uniformly to the misfortune of the Austrians. In the meantime, disunion took place among their generals. The Archduke Ferdinand, Schwartzenberg, afterwards destined to play a remarkable part in this changeful history, with Collowrath and others, seeing themselves invested by toils which were daily narrowed upon them, resolved to leave Mack and his army, and cut their way into Bohemia at the head of the cavalry. The archduke executed this movement with the greatest gallantry, but not without considerable loss. Indeed, the behaviour of the Austrian princes of the blood throughout these wars was such, as if Fate had meant to mitigate the disasters of the Imperial House, by showing forth the talents and bravery of their ancient race, and proving, that although Fortune frowned on them, Honour remained faithful to their line. Ferdinand, after much fighting, and considerable damage done and received, at length brought six thousand cavalry in safety to Egra, in Bohemia.[133] [Sidenote: CAPITULATION OF ULM.]