In late January 1831, the Polish National Government decided to send an army corps to Podolia, Volhynia and Ukraine. Dwernicki was named commandant of this unit, but in February 1831, when Russian Army entered Congress Poland, Commander in Chief Michal Gedeon Radziwill ordered him to stop the advance of General Teodor Geismar. On February 14, 1831, the Russians were defeated in the Battle of Stoczek, and Dwernicki was afterwards promoted to Divisional general. Following the battle, Dwernicki and his unit marched to Góra Kalwaria, and then engaged the Russians in several places, such as Warka, Kozienice, Puławy, Lublin and Zamość.