In September 1939 with the onset of the Second World War and Invasion of Poland, the soldiers of the regiment left the barracks and fought against Nazi Germany at Ostrołęka, Myszyniec, and Nowogród. Following the Soviet occupation of the city and the Red Army was stationed in the barracks. In 1941 the Germans entered again the city and used the barracks. In 1944, when retreating from Bialystok, the Wehrmacht destroyed the city and set fire to the barracks. The barracks were finally demolished in 1951 with some building materials were used in the construction of a textile factory in Fasty district.