In mid-February 1920, the regiment was loaded on a train, and was transported to Wilno, where its name was changed into the 17th Greater Poland Uhlan Regiment. On March 12, Colonel Witold Zychlinski was named its commandant, and after a two-week training, the unit was transported to the frontline along the Berezina river. In mid-April 1920, it was transported to the Ukraine, to support Polish forces in the Kiev Offensive (1920). It fought with distinction, capturing the town of Malyn. On May 7, 1920, mounted patrols of the regiment entered Kiev. To commemorate this event, May 7 was named as regimental holiday. For the remaining part of May and in early June, the regiment patrolled the Dniepr river line, but after Soviet counteroffensive it was forced to retreat, together with whole VII Cavalry Brigade.