Prior to the Battle of Rossbach, Sprecher commanded a small force of grenadiers near Schoenau, part of the game of cat and mouse that the Austrians, French, and Prussians played prior to the battle. Prior to the Battle of Schweidnitz, Sprecher commanded the Austrian right wing; in consequence of an artillery dual, the Duke of Bevern moved his forces away from the Austrians, abandoning about 200,000 rations in the process. At the Battle of Breslau, Specher led the first wave across the Gross Moecherbern bridge, including some infantry units, 35 full companies of grenadiers, mounted grenadiers. At about 1:30 pm, Sprecher had pushed out the battalions of Caspar Ernst von schultze's battalion; Schultze himself was wounded (and died later); the Austrian attack also pushed out the Prussians holding the great battery. Eventually, once the Prussian garrison at Breslau was isolated, they were offered, and accepted, the opportunity to withdraw.