After eventually taking control of Warsaw in January 1945, the First Army took part in the Vistula–Oder Offensive, and afterwards it moved towards Bydgoszcz. The Polish First Army then fought in Pomerania, breaking through the Pomeranian Wall ("Pommernstellung") fortified line and capturing Fortress Kolberg, a heavily fortified city, in March. Its units advanced northeast as far as Gdańsk and Kępa Oksywska. During the battles to penetrate the Pomeranian fortifications, the 1st "Warsaw" Cavalry Brigade made the last mounted charge of Polish cavalry at the village of Schoenfeld.