On August 24, 1917, the regiment was transported to Przemyśl, and in October was sent to the frontline along the Prut. In February 1918 the regiment was stationed in the area of Czerniowce. After the Treaty of Brest-Litovsk (Ukraine–Central Powers), most soldiers decided to break through Austrian lines and join Polish II Corps in Russia (see Battle of Rarańcza). They managed to reach the town of Soroca, where both forces merged, creating the Second Polish Corps.