In mid-April 1757, the regiment formed part of the army that invaded Bohemia. On 6 May, although in the region, the regiment did not take part to the Battle of Prague. Instead it was deployed on the left bank of the Moldau near the Weissenberg as part of Field Marshal James Keith's corps. On 18 June, five squadrons of the regiment took part to the Battle of Kolin. They were deployed in the cavalry vanguard on the extreme left under General von Zieten. At the end of August, the regiment was part of the small Prussian army assembled at Dresden by Frederick II to head towards Thuringia and to offer battle to the Franco-Imperial army invading Saxony. On 14 September, when Frederick was forced to divide his army to contain the French in the region of Magdeburg and to secure the Prussian magazines in the area of Torgau, the regiment remained with Frederick at Erfurt to observe the Franco-Imperial army. On 15 September, the regiment was part of Seydlitz's force which occupied Gotha.