Regarded as "incompetent" by historian David G. Chandler, Archduke John had seen his first army utterly smashed by French General of Division Jean Moreau at the Battle of Hohenlinden on 3 December 1800. In Moreau's subsequent pursuit, John's army became so demoralized that it was scarcely able to defend itself and suffered huge losses in prisoners and weapons. During the War of the Third Coalition, he had done better. After Napoleon wiped out Feldmarschall-Leutnant Karl Mack von Leiberich's Austrian army in the 1805 Ulm Campaign, John's army beat a hasty retreat eastward from its position in the mountainous Vorarlberg. He successfully linked up with the Army of Italy, led by his brother, Archduke Charles. Unfortunately for Austria, Napoleon's crushing victory at the Battle of Austerlitz ended the war before Charles and John could intervene in the Danube valley.