Although the reputation gained by the Prussian army in the wars fought between 1675 and 1715 was a good one, it was still considered one of the minor military forces in Europe by 1740, when the War of the Austrian Succession broke out. Leopold's outstanding achievement just before this time was his training of the Prussian infantry. The "Old Dessauer" was one of the sternest disciplinarians in an age of stern discipline, and the technical training of the infantry under his hand made the Prussian infantry into a formidable fighting force whose effectiveness had not yet been demonstrated. Leopold was essentially an infantry soldier; in his time, artillery usually did not decide battles, but he nonetheless chose to neglect the cavalry service, with results that manifested themselves at the Battle of Mollwitz in 1741. Frederick II of Prussia led the cavalry himself at the battles of Hohenfriedberg in 1745 and Leuthen in 1757, but had it not been for the supporting infantry trained by Leopold he would never have had the opportunity to do so.