He was placed in command of the Austrian contingent sent to join the Russians on the Oder, and participated in Kunersdorf alongside Pyotr Saltykov where a joint Russo-Austrian contingent won a great victory. As a result, Laudon was promoted Feldzeugmeister and made commander-in-chief in Bohemia, Moravia and Silesia. In 1760 he destroyed a whole corps of Frederick's army under Fouqué at the Battle of Landeshut and stormed the important fortress of Glatz. In 1760 he sustained a severe reverse at Frederick's hands in the Battle of Liegnitz (15 August 1760), which action led to bitter controversy with Daun and Lacy, the commanders of the main army, who, Laudon claimed, had left his corps unsupported. In 1761 he operated, as usual, in Silesia, but he found his Russian allies as timid as they had been after Kunersdorf, and all attempts against Frederick's entrenched camp of Bunzelwitz failed. He brilliantly seized his one fleeting opportunity, however, and stormed Schweidnitz on the night of September 30/October 1, 1761. His tireless activity continued to the end of the war, in conspicuous contrast with the temporizing strategy of Daun and Lacy. The student of the later campaigns of the Seven Years' War will probably admit that there was need of more aggressiveness than Daun displayed, and of more caution than suited Laudon's genius. But neither recognized this, and the last three years of the war are marked by an ever-increasing friction between the "Fabius" and the "Marcellus," as they were called, of the Austrian army.