Also, some other units were located in garrisons across the Polish part of Upper Silesia: In October 1938 the Division, under General Jan Jagmin-Sadowski, participated in the annexation of Trans-Olza.
Commanded by Colonel Wladyslaw Powierza, it was part of Operational Group "Silesia"/"Jagmin" of the Army Kraków, under General Antoni Szylling.
On September 1 and 2, the unit defended the so-called Fortified Area of Silesia, then it was ordered to support the 55th I.D., which was fighting around Wyry and Kobiór.
Between September 4 and 20, the Division retreated eastwards, repelling German attacks and beating the enemy in Biłgoraj.
On September 19, the Division joined units attacking Tomaszów Lubelski, but these efforts were fruitless.