On November 13, 1918, officers of the regiment were released from German prison, and arrived at Warsaw. On the next day, they began forming the 5th Uhlan Regiment, which was at first based in Mińsk Mazowiecki. The regiment fought in the Polish–Soviet War, after which it was garrisoned in Ostrołęka. During the 1939 Invasion of Poland, it belonged to Podlaska Cavalry Brigade.
