Despite Klenau's success at the Battle of Haslach-Jungingen, the Austrians could not sustain their positions around him, and the entire line retreated toward Ulm. Napoleon's lightning campaign exposed the Austrian weaknesses, particularly of indecisive command structure and poor supply apparatus. The Austrians were low on ammunition and outgunned. The components of the army, division by division, were being separated from one another. Morale sank, "sapped by Mack's chaotic orders and their [the troops] growing lack of confidence in their nominal commander," Ferdinand. Following the Austrian capitulation at Memmingen, south of Ulm, the French achieved a morale boost over the Austrians at the Battle of Elchingen, outside of Biberach, on 14 October. Here, northeast of Ulm, and slightly north of the Danube, Ney's VI Corps (20,000 men) captured half of the Austrian Reserve Artillery park at Thalfingen. In a further blow, Field Marshal Riesch was unable to destroy the Danube bridges, which Ney secured for the French. Ney received the victory title, Duke of Elchingen.