The Battle of Ulm on 16–19 October 1805 was a series of skirmishes, at the end of the Ulm Campaign, which allowed Napoleon I to trap an entire Austrian army under the command of Karl Freiherr Mack von Leiberich with minimal losses and to force its surrender near Ulm in the Electorate of Bavaria. By 16 October, Napoleon had surrounded Mack's entire army at Ulm, and three days later Mack surrendered with 25,000 men, 18 generals, 65 guns, and 40 standards. The victory at Ulm did not end the war since a large Russian army under Kutuzov was still near Vienna. The Russians withdrew to the northeast to await reinforcements and to link up with surviving Austrian units. The French followed and captured Vienna on 12 November.