In August 1939 the Division, under Colonel Ignacy Oziewicz, was transferred to the reserve Prusy Army of General Stefan Dąb-Biernacki. On September 1, first day of the war, it unloaded from trains in the area of Skierniewice. Then, it marched towards Rawa Mazowiecka and on September 3, it took up defensive positions along the Pilica.
