On 1 August 1919, the regiment moved to the front line as a part of 14th Greater Poland Infantry Division (). The regiment campaigned through Maladzyechna, Małe Gajany, Minsk, Ihumen, Bochuczewicze and Babruysk, which was captured on 28 August. Babruysk became the base of the regiment during the fights in the Berezina River valley and in Polesia until May 1920. In this period, Soviet soldiers nicknamed the regiment "" (), due to the red colour on their rogatywkas. In May 1920 the regiment took part in stopping the offensive of the Soviet 16th Army, taking many soldiers from the Soviet cavalry brigade as prisoners. In June 1920, due to next Soviet offensive, the regiment was forced to retreat. During fights near Ivachnoviche, on 29 July the regiment's CO, LtCol. Władysław Anders, was wounded. As a part of the Polish counteroffensive the regiment broke through the Soviet lines on 16 August, near Maciejowice. Later the regiment took part in the Battle of the Niemen River. In the second half of September 1920 cavalryman took part in fights near Mezhiritch, Zelva and Snovy. The last city captured by the regiment was Minsk, from where the unit was withdrawn after the ceasefire. On 16 January 1921, the regiment returned to Poznań under the command of Władysław Anders. For their valor during the war, all regiments of the 14th Division received Virtuti Militari. The colours of the unit were decorated by Marsh. Józef Piłsudski on 22 April 1921.